TMNT and Other Strangeness. I had to special order it from Fantasy Ltd (our local comic shop). I was probably 11 years old. I still don't know how to play it.
I bought the Dungeons and Dragons Basic Box set in a pharmacy (might have been a gas station) with birthday money. I had been introduced to the concept at a friend's house and had been making up my own rules at home up to that point. That would have been the spring of '82 and I was 9.
My first book was the Fiend Folio for AD&D. Though, I didn't buy that I found it at my grandparent's house, a relic from back when my uncle was a boy and played. I didn't know what it was, really. I just thought all the Russ Nicholson art was really awesome and would just look at it from time to time.
The first actual book I bought with my own money was this bad boy:
I grew out of the WoD within a 2 to 3 years. But it was the 90s and the pull of angsty bois, clove cigarettes and metaplot was strong.
Yes, I do remember. For Christmas 1985 I asked (and received) the Mentzer Red Box in Italian. I started playing immediately and I haven't stopped since...