I was never a comic fan as a kid. Never got into the Superhero thing really. But there's just so much out there now, so much of it compelling and adult. Finally reading Sandman was a huge step for me, but I've discovered there are just amazing things waiting to be found if you look hard enough.
That's exactly what happened to me. I read Spiderman for roughly one story arc (Venom, which does make me excited for III), but other than that the superhero thing never really pulled me in. Years later, the comment "I'm not really fond of comics or graphic novels or whatever" landed the first four books of Sandman in my lap. A month or two later I owned them all.
Recently I'm into Warren Ellis in a big way. Transmetropolitan, of course, but especially NextWave (We'll kick your ****ing ass!) and Fell, which is an interesting and dark take on the lone good cop story.