I bet both Pop and Duncan would rethink there decision (At least for another year) if Aldridge came to SA though. It would be like David Robinson & Tim Duncan all over again.
I hope that doesn't happen, because frankly I think he's done just about everything this franchise and its fanbase could have ever asked of him. If he leaves I won't be happy, but to go ring hunting with Popovich would be awfully tempting and it would be hard to fault him for it.
This is how I feel. He's a grown adult and makes his own decisions, why would you boo him for signing elsewhere? If he wants to be closer to home and closer to family, then by all means, do what makes you happy. Now, if he did what Carmelo did.... There's a right way and a wrong way to do it.