I haven't bought jerseys lately since I only end up wearing them for games and players just move around way too much to make the investment in their jersey.
I got a Kelly jersey when I was in middle school from my folks and I got a Johnson jersey in Christmas 2000 from my girlfriend when I was taking the RJ side (how I regret that) during the infamous QB debate. She now wears the one for sleeping. Oh well, at least it's getting some use out of it.
I really admire the guy I saw a game at the Meadowlands, during a Bills/Jets contest in December 2001, who had fashioned a Van Pelt jersey out of masking tape. Especially since I didn't have the balls to wear my Bills gear to that game.... (I ended up coming out of the fan closet as the game went on, I couldn't hide it for very long.)