I was born and raised in Phoenix. I was a Suns fan at first *gasp*.
I moved to L.A. when I was 17. I had Lakers / Clippers season tickets for quite a while. (Half season of each team). At that point, I was just a fan of basketball. I wasn't a Spurs fan. I wasn't a Laker fan. Honestly, I was a Jazz fan

(sacrilege to Spurs fans).
I was a big fan of Duncan at Wake. When he got drafted by the Spurs, I started following the Spurs. For his first few years in the league, I watched the Spurs a lot but wasn't really a Spurs fan (even in the 1999 le).
Starting in 2000-01, I started actually liking the Spurs. I didn't meet timvp until the playoffs of 2002. So I was actually a Spurs fan for about 2 years before meeting him.
Though the Spurs are by far my favorite team since that time, I am not one of those die-hard since birth Spurs fans at all. Though, the 03-05-07 Championship runs were freakin awesome.