I wondered that, too. SUCH a lack of class. I recall being at the game when Devin Brown got his ring. The Spurs fans not only cheered Devin when he was presented his ring, the house just about came down when he scored his first couple of baskets...FOR UTAH! And he was cheered every time he came into the game after that, too.
Malik Rose was also cheered when he came back to the AT&T Center for the first time after he left.
You know, Charlie Parker made a pretty astute observation on the radio a couple of days ago (I don't listen to him, but someone who does was telling me about it). He said that Dallas is such a great city, so pretty, fine architecture, attractive streets and parks, etc. It's the people that suck; they're rude and classless. And, poor Houston...it's such an armpit of a city and no one wants to go there, but the people are wonderful. If you could take the people out of Houston and put them in Dallas, you'd have the perfect city. He was right on the money, IMO.