I dont think there is much originality in games these days. Game developers focus too much on Graphics. In the 'old 8bit days' programmers were very limited with what they could do with graphics. They spent most of the time working on gameplay.
Now its all about 3D graphics and surround sound
Which also means you have to fork out for the likes of fancy speakers etc to really appreciate the game.
Maybe programmers are running out of ideas so now they are just going to focus on the current 3D 'engines' - adding more attention to detail etc etc.
To be honest - I've lost interest in games generally as they all seem too samey to me. I'm easily pleased! Tetris with its simple graphics keeps me occupied for hours on end.