Geez, Jeff, Rawma's got a point here...switch to decaf, let it go. If only someone had thought that one fustercluck of a thread was a bad idea to let fester...
Anyway, I have Munchkin, but only played it a few times. It's too easy for the rest of the players to gang up on whoever's winning, and I always find that sort of thing obnoxious. Still, it's not without charm, easy to teach, and amusing enough for the bargain bin. Buy it, play it two or three times, and you won't regret a small investment. I have no clue how anyone could sink money into the expansions and whatnot, but perhaps I just didn't play it enough to see any real depth to the game.