Blizzard just nerfed boss runs. You will no longer receive quest XP for killing a boss after the first time and the loot dropped will be less each time. I could have sworn that was what Diablo 1 and 2 were all about. Grinding the bosses. I also have a great wizard build now, but Im not going to say anything about it or blizzard will nerf that also. Seems like anytime you find a good build it gets nerfed. SHHHhhhh. Don't tell blizzard but I have a new wizard build and I am having FUN again.