Wow, this is actually a tough question! I'll try to answer it, but forgive me if I repeat some of Steve's reasons.
First off, all my life, for as long as I remember, I've wanted to be a writer. It's the only thing I've ever really been able to see myself doing. i've always been fascinated by the power of storytelling, and the subjects I pursued through university - English Literature, Theatre, Film & TV - were all about methods of telling stories. But since graduating from university, and realising that part time jobs and temp work would now have to give way to what I actually want to do with my life, I've discovered just how hard it is to convert a lifelong passion into a tenable career.
My ambitions have been spread out across various mediums. Like most, prose was the first type of creative writing I worked on, and over the years I've written a whole lot of it, a whole lot of short stories or the odd novella, albeit nothing publishable. I have done active research into the short story market, which in a lot of its own ways is more closed-off and barren than even comics. I'd love to go further and write a novel, but I just don't know if I have an idea good enough to sustain 200-500+ pages, a style of prose to match the eloquent wordsmanship of the best authors, or indeed the resolve to see the damn thing through to the end - my previously discussed problem of self-doubting my ideas into oblivion is compounded on the occasions I've attempted to embark on a novel-length project.
Hoping to expand my skills, I began writing in script format, learning first in my high school years the format for playwriting (I wrote and directed a short play at a festival a few years back), then in my time at university some of the tools of screenwriting, and more recently the nuances of writing the screnplay's cousin, the teleplay. If there's anything I've loved as long as writing, it's cinema. Movies (and sometimes TV) have the advantage of being able to say more with an evocative image than a book can in a whole chapter. But while I have an interest in directing, that path leads down a more technical route that almost becomes more science than art, and I realised that again it was the writing behind the image that really caught my aspirations. If I were to be involved in film or TV, I wanted it to be as a writer first and foremost.
As such, over the past year or so I have devoted quite some time to writing up various short films and even a TV pilot to submit to various competitions that I've kept track of. But sadly nothing's came of them. At one point I scripted a short film, and set out to direct it myself and get the thing made - I budgeted for it, got together cast and crew, storyboarded it out, looked into hiring equipment and getting a shooting schedule in place. But family circumstances outwith my control halted that project, and it was a case of timing being everything, and all the elements on it fell apart.
Lately, I've embarked on a course on writing for publication, which has helped change some of my views on the world of writing, as well as opening my eyes to new avenues available to me. Writing non-fiction seems like a possibility now, which could segue into journalism - I don't know.
But enough of my life story! Sorry, that "introduction for context" ended up turning into a rambling essay! I hope there's a point to it, as I now go on to answer the question: why comics?
See, for a lot of people who have career aspirations, particularly in the entertainment industry, they have role models, people they draw inspiration from and want to emulate. An aspiring actor might look up to DeNiro and Pacino, or an aspiring director might look up to Scorcese or Spielberg. But as an aspiring writer, with plenty of knowledge of writers in various mediums through my study, what writers do I draw inspiration from? Geoff Johns. Ed Brubaker. J. Michael Straczynski. And most of all, Grant Morrison, not just for his ideas, but because he's proof that a genius writer from Glasgow isn't an oxymoron.
I think comic books have the best of every medium at their disposal. Like prose, they remain at their heart about the writing, the writer is the one who shapes the book's identity. Like cinema, they can employ images to say more than words ever could, and moreso than cinema because there is NO limit at what images you can use beyond the talent of the artist. Like television, an arc can steadily build over episodes, you can craft mysteries and cliffhangers, truly immerse your audience in the world and the mythology. I look at comics and graphic novels as the best artform in the world, or at least the one that connects with me more than any other.
And this is where I return to that earlier rambling. Those scores of unpublishable short stories? They were unpublishable because they were sprawling adventures featuring the heroes and villains of Marvel and DC. From the earliest age, these characters have fascinated me and fuelled my imagination. Lifelong passion for cinema? Tim Burton's Batman is one of the first films I can remember loving. Batman: The Animated Series changed the way my young mind viewed television. From Batman to Spider-Man and beyond, these universes of larger-than-life characters have always been there in my life, getting me through good times and bad (god, that sounds like something out of a soap opera!) growing and changing and evolving.
And this is something else that I think is near unique to comics: the level of symbiosis between fan and creator. It's theoretically possible that someone can read Superman comics all through their childhood, then grow up to write them himself, in turn inspiring more children to grow up and do the same thing. I've long dreamed of being a part of that cycle. Of course, that's the ultimate, long-term ambition, rather than anything I expect to attain right away. But though many won't admit it, I'm sure I'm not the only one who's kept the outline for a Joker story on file, an Iron Man story, a Green Lantern story, touching up the idea and improving on it as the years go by and my skills improve, hoping to one day be able to dust it off and show it to the world.
But as much as I LOVE comics, as much as I viewed it as a dream job to be able to write them, until recently I never saw it as a possibility. I viewed it as something vague, abstract and unattainable, something I could never achieve, and so I spent time focusing my energies into the other avenues mentioned above.
And that's where Steve Forbes' columns have (getting cheesy again, and I don't mean to be hyperbolic) changed my life. I know his intention a lot of the time is to remove people's illusions and even dissuade them from writing in comics if they're not serious about it, but quite the opposite, Bolts & Nuts has opened up the world of comics as something real and feasible, something that's hard - VERY hard - but not unattainable. By pulling back the curtain and taking apart the mechanics of comics creation, I've only found my love for the medium taken to whole new heights. I've thrown myself into the steep learning curve of writing comics scripts, and I love the challenge, the way they're told. It's an adjustment, writing in a series of images, but there's something about it that just feels right, like it's something I can actually do and maybe even have a vocation for.
While before I might have viewed writing comics as a blind alley, the comic book world something I was only ever going to be able to admire from the outside, over the past year it has become THE thing I most want to do with my life. I don't want fame and fortune. The respect of peers and readers, and enough money to support myself and in the future a family would be living the dream for me. And it's not just about writing for Marvel or DC either. I have ideas, original ideas, just like I always have, but now they all seem to be coming to me in comic book form, and somehow that makes them more palpable to me, more natural to write. It sounds sad, but few things make me happier than writing comics (or, indeed, writing about comics) and above all I want a career that brings me happiness and fulfilment. In all likeliness I'll find myself in a job that's less fulfilling in order to fund my "career", but reaching a stage where it's my career that pays the bills? That's the stage I eventually want to reach, and I know it's going to be a long, hard road to get there.
Sorry, that was probably waaaaaaaaay more than what Steve was looking for in an answer here, but that's my story.