My wife and I play Dance Central, or rather she plays and I'm a reluctant participant. It's kind a fun if I'm drunk enough......... I guess. We'll sometimes break out the game and have a dance off to decide certain things, like if I want to go someplace like Salty's and she'd rather go to the Olive Garden we'll let the winner decide. Goofy I know, but it at least it makes it interesting.
Most everything on it is garbage though. We played Child of Eden the other day and Kinect made it completely impossible. Kinect is the antidote for fun.