As to how I got into comics, my parents divorced when I was 4 years old, and my dad was left taking me with him on job sites. He was an electrician and I generally had to sit in the truck all day otherwise I'd be in all manner of trouble around those industrial sites, so we'd stop every morning and grab comics at the local drug store (remember those? They had bad ass milkshakes too!) As I got older I got more comics and when I found out that the only comic book store in 200 miles was on the way to work most days...that was a wrap. When I was about 8, and already had a few thousand comics in my collection we were cleaning out an area of our barn where my uncle had left a bunch of his stuff before joining the Marines during Viet Nam. Among these things were two huge boxes of Silver age comics from when he was a kid, all in excellent condition despite being sequestered in an old dusty barn for several decades. Books like Batman in the 60s and 70s numbers, the first 60 or so Spiderman issues, the first 50 X-men, and so on. Early Superman, Legion of SH, Hawkman, Flash, and all the Sgt Rock stuff a kid could ever want. That's where I fell in love with the Flash and Teen Titans, and I've been a fan of those books ever since.
Over the course of 35 years or more as a comic fan I managed at one point to amass more than ten thousand comics, but after a couple of ex wives that number dropped down to about 6k or so, and stayed there pretty much until 2007 when I sold ever comic I owned to finance making my own comics. Since then I buy a few, read them, and then give em away. I sent a couple thousand comics over to the guys in Iraq and Afghanistan a few months back, and gave about four long boxes worth to a couple of kids who live nearby via Craigslist. I think the collector in me is just about dead, but the reader and the fan will never be gone. I love comics too much.
First comic I remember reading? A Neal Adams Batman, but I couldn't tell you the issue number. The Riddler had Robin and Batgirl captive, that's about all I remember. Other early books included Moonknight and Rom. They were both in the same stack, bought at the same time. Those books kicked ass.