I recently purchased Diablo 3 on console (take that, PC Master race!) and I've been hooked, due in no small part to the loot system. You get enough good loot and at a decent pace to keep you playing. You're excited to get that new piece of gear, because the game actually delivers. Unlike Density where no matter how much you believe in and pray to RNGsus, He frequently disappoints. I've even donated to the official church, yet I'm still condemned to eternal damnation and loot stagnation.