I'm just sad that Sandler hasn't lived up to what seemed to be some potential. His character in Punch-Drunk Love was very much like an Adam Sandler character, but toned down, more complex, and more sympathetic. I kind of forgot about Reign Over Me, though, which is further proof that he has some talent that he fails to use very often. Hopefully he'll stop churning out atrocities like Click and I Now Pronounce You Chuck and Larry sometime in the future...
Personally, I think Adam Sandler needs to make more movies like Happy Gilmore; funny, but there is an actual story with subplots and stuff hidden in it. Those movies are always his biggest hits and are the most popular ones.