Bynum is worth every cent of the $80MM assuming he is healthy. I can only dream that the Lakers don't sign him and the Cs do.
If you actually look at his production last year, he was one of the best players in the league and better than his own teammate Mr. Kobe Bryant. Those are the facts (WP48 0.394 vs. Kobe 0.247). Yes, it's a small sample size since he did get injured but the guy is young and if healthy there's no reason why he won't improve his already excellent game.
As I said in another thread, according to this same "stat", Rajon Rondo is as good as Paul Pierce, and Marcus Camby and Andris Biedrins are much better than any player on the Celtics other than KG (and Camby is better than KG). It's a ridiculous "stat", which I think is completely useless.
The claim that WP48 shows the "best players in the league" in terms of "production" is not a "fact"; it's a fantasy, based upon throwing various statistics together into a ridiculous formula that proves... absolutely nothing. Unless, of course, you think Pierce = Rondo and Ray = Perk.