It's amazing that a lot of the same people who reject Iverson 100% were in favor of bringing in Rasheed Wallace. They both have very pronounced negative sides, even if they are different negatives. If Wallace could somehow transform into a Spurs-type team player, there's no reason Iverson couldn't. It's a big "If", but I think Iverson has probably noticed that he doesn't have a ring.
Yes, Iverson puts up a lot of shots. But then again, he has averaged more than 41 minutes per game, over a 13 year career. On a per-36 basis, he probably shoots at a similar rate as players like Ray Allen or Paul Pierce - and those two volume shooters are getting along on the same team. And over his entire career, Iverson has gone to the line about 8 times per 36 minutes - more than Allen, Pierce, Kobe, LeBron, CP3, and probably anybody else you can think of. And while he was busy putting up shots, he somehow managed to dish out over 6 assists per game.
He's a guy who can get a shot at will, and who can force the other team to put him on the line. Think about those 8-minute scoring droughts the Spurs go on. Think about those times when the other team clamps down on defense, and we can't seem to get a shot off. Think about a playoff game when the Spurs are down by 1, with 5 seconds on the clock.
I would think the response to Iverson would be "IF". IF the price was right. IF he showed that he wants a ring at all costs. IF he would agree to a role on the team. Maybe he wouldn't agree to any of those things. But people do change, and I sure as wouldn't rule him out without talking. Because he is definitely capable of improving the Spurs' chances of winning another championship.