WoW
I'm going to go ahead and bet that this Penny Arcade comic is only going to be funny to... none of you. There's no way it's funny if you don't play World of Warcraft and also know that there's a Lego MMORPG coming out. Yeah, that's right, Legos.
But if you do both of those things, it's pretty hilarious.
//
In other news, I took up World of Warcraft. Play it with the girlfriend all the time.
(I never expected to issue that first sentence, let alone the second one.)