WoW upped the game. Plain and simple.
Why no WoW killers?
- Many many many games following WoW werent looking to up the game, they just wanted to clone the success of the king.
- an MMO is a large long-term investment. Many investors lose patience and force developers to push out an unfinished product with far less content than WoW, more bugs and instability than WoW
2.b - Why put up with this when I can go where I’m comfortable?
I can’t put it any simpler, I dont think.