Well bandwagoners are always going to be there.
I've been a 49ers fan since I was a little kid in the 80's. Though it does help that the 49ers were the team of the 80's, hehe. Though my parent's were 49ers fans and I'm from California (not too far from SF actually).
Even though the 49ers have been down the past several years, I'm still rooting for them (and I always will!)
I do agree that you can be fans of certain players though even if you don't like the team. E.g. I really enjoyed watching Barry Sanders play (he was a spectacular RB!), even though I'm not a Lions fan.
starcraft: "I and every PS3 fanboy alive are waiting for Versus more than FFXIII.
Me since the games were revealed, the fanboys since E3." 
Skeeuk: "playstation 3 is the ultimate in gaming acceleration"
