I'm enjoying my quad boxed DKs. I'm heavy Unholy with the rest in blood. The 30s heal is just awesome, and I really enjoy the ghouls. Army of the Dead X4 is a bit of a letdown... but oh well.

As far as why I'm doing it? Well.. it's a game. Honestly, if you've reached the point where you need a reason to be doing anything in wow then I'd say you're no longer viewing it as a game and should considering something else. Just because we've all sunk a bunch of money into WoW doesn't mean we should be more committed to it than our "fun" levels allow.