My old man was a fanatic in the 80's and early 90's, but I was too young (I'm 27 now) to really appreciate it.
I was a huge anti-Jordan guy in the mid to late 90s (I guess you would call me a Stockton/Malone guy, but the Dream, Barkley, the Sonics, Shaq..anyone but Jordan.), when people asked me my team, I'd say Celtics, but I didn't really care that much about a team. I remember my collection of Dana Barros, Dee Brown, Dino Radja, and Eric Montross cards. Ugh.
When Toine and Pierce came along, we started watching again (me and my old man). I followed, but not too intently.
Then, sometime in 2004 or 2005 I fell in love again. I dunno what it was, and I know it sounds crazy, but I swear I was more passionate about this team when it was down in 05/06 and 06/07 than I have ever been while it was up. An Al Jefferson jersey still hangs on my wall (and I assume my Big Baby will go up there next season when he signs somewhere else).
So yeah, my old man made me a fan, but it was Perk, Al Jeefe, Delonte, Gomes, and Gerald Green (High54Life!) that brought me to this sorry saloon.