Who says a game has to be innovative to be good?
Just look at Sonic Rush: Its basically the same game we played 15 years ago, enhanced with the DS´s features, and its just fantastic!
Innovation is not everything, if an existing good gameplay structure is used well, it can become the core of an awesome game.
I´m more concerned with all those WW II, Vietnam and Tactical FPS´s... while i don´t mind a game using an established gameplay principle, i am fed up with those scenarios.
Give me a SCi-Fi or fantasy FPS anytime!