Saying it's all the same seems a little unjust. What about Paradise Bay, for example?
That seems a fundamentally very different kind of game from King, and looks to have been pretty successful, if not as big a hit as the 'match-three' games.
It's No. 60 on the Android top grossing games list.
Whether it's a *good* game or not is I suppose a different question, but it appears successful?