I played Diablo II for ~2years, I ended up going back to Warcraft 2 because the patch where they added the new stuff and changed the trees around basically crippled all four of my lv 85+ Characters and at the same time made their gear worthless.Diablo II was the shit dude...you just had to play Ladder to get away from most of the dupes. Although I will say at "pvp" did go downhill after Enigma came into play.
I have faith in Blizzard, they've yet to make a game that I haven't loved. Hell, even Lost Vikings was pretty damn good.
The lost vikings was freaking bad ass IMO, especially when you consider it's era.
I'll regain faith in Blizzard when they put out a patch or a sequel that doesn't make the series less fun to play.