From the PlanetXbox360.com feature article:
"Since Microsoft finally got around to pricing Kinect, I felt it was time to take a moment, step back and really absorb what the hell exactly we were looking at as an overall package to assess really whether or not it is worth $100 bucks. Why do I say $100? Simple. By including Kinect Adventures in the bundle for people who already own an Xbox and titles for the motion detecting camera retailing on Amazon for roughly $50 dollars, why wouldn’t I think that? Besides, for the underlying offering, this seems to be how much those games should cost as a proper price point. But are the games the only reason why? Hell no they’re not. While I do plan on picking up a PlayStation 3 bundle when Move releases in September so I can stop hijacking my brother’s console, I’m very interested to see both the Sony and Microsoft approach to motion controls for myself.