I don't mean to be that guy but...
I bought Diablo 2 on release day back then and was thoroughly unimpressed. Boring clickfest in my opinion. Since then I've played Diablo clones that were far better like the original Dungeon Siege, Titan Quest and even Torchlight.
Forgive my ignorance as I haven't played PC games much in two years but what does this game do differently from Diablo 2? I bought Starcraft 2 release day as well and played about 6 hours before shelving it. It was almost the exact same mechanics with fancier graphics (that were no better than Company of Heroes'). How is this game better?
I've been looking for a reason to install the water cooler I bought last year and upgrade my video card but my PC is mostly a Youtube box these days.
*Edit: two of my friends are calling in sick next week to play. I've asked them what's going to be new and original in this game and they both said, "IT'S DIABLO BRO, YOU GOTTA PLAY!" Meh?