Simple fact of D3, No End Game.
Everyone has left or is leaving, in a month from now 20% of the original players will remain.
I know of 23 local players that have stopped, I have also stopped.
The game is boring and repetitive, nothing like D2 and as far as I am concerned its to far gone to be saved.
I've probably played more hours than most of you guys, I have beaten Diablo on inferno on 3 different toons.
I have farmed countless hours, I have made more coins and gotten better gear than most people...For what?
Just to farm more gear and get more coins? For no purpose whatsoever. There is no End game, there is no reason.
The game has an extremely short life span.
Why you ask..Because Blizzard only saw $$ signs when they made Diablo 3, they knew there were millions of Diablo fans waiting for this title and they knew they could cash in.
They dictate how people are supposed to play, They force you into certain play styles and gear, They nerf the crap out of everything useful. The way they treat their loyal gamers is an absolute joke.
Edit: Also please don't compare D2 with D3. D3 was in development for 7-10 years...Apparently..They had more than enough time to get it right.
Oh and I have seen F2P mmo's with better depth and story and much better end game..lol
That says a lot about mighty Blizzard.
Edit 2: I wanted D3 to be amazing, I wanted it to have the staying power of D2, I wanted it to be the game I could play for a year..and its not..not even close. Less than 2 months in and its already dead.