I think having Kinect 2.0 mandatory is essential. I think it will be very useful for what we have already seen - navigation, voice controls, etc. Plus their will be many new features that people haven't even thought of yet.
The complaining that 'movement can not be a core gamer' reminds me of how people complained about 'two joystick' back when they were introduced. Too complicated, too hard on your thumbs, not fun - a total fail. An how has that worked out?
I am thankful that they included Kinect and think it will be as essential as a mouse/ball/pad on a PC.

I had fun with Kinect once, it was aweful.







