Like me, for instance. I have no desire to use hand motions to control a video game or media device. I want buttons because there's no mistaking buttons. You press a button and it does what it says.
Kinect? Wave at it. Does that mean turn the volume up? Or does it mean go back to dashboard? I'll do both!
*whole family is awakened by a self playing advert that Microsoft has deployed on the dashboard because fuck the user base*