i wasnt till i played the Diablo 3 beta. Hack'n'slay is not my favorite genre, but with diablo3 it is a lot of fun. Sadly i dont want to spent to much time playing, so that i will not play diablo3 very much.
Diablo isn't so much hack'n'slay as you put it, although some might argue otherwise, for me it was always building an awesome character. I'll probably spend a bit of time playing the game but I don't want it to interfere with everything else, maybe just a couple of hours every other night.