Umbran said:
Yeah, well, to the DM it may seem like cinematics. It's somewhat more likely to be a rules-point to the poor slob whose sword you just broke. Cinematics are all well and good until you're the victim of them, rather than the instigator
Well, I've harped on in the past about not taking players' toys away from them:
http://test.cyberstreet.com/showthread.php?s=&threadid=10974
However, that doesn't mean I'm completely against the notion of destroying magic items. It just means that sundering shouldn't be something that happens without a context that makes it meaningful. In fact, for every Durandal that can't be destroyed no matter how hard you try, there's a Narsil that goes snap in the middle of killing the foozle. Sometimes a lot of drama can be served up by having the demon break a fallen warrior's weapon in two, and then pointing to the PC and saying, "you're next".