1) The kinect sold more per month of its release then the xbox 360 did as a whole (per month sales from release) - and that kinect is far inferior to what we are getting now.
2) the K1 is priced at 150.00 on its release and right now still at 100. the K2 is included. the X1 is worth 500 by itself, its basically a free device you don't even need to use or plug in. Its like complaning about getting a free soda with your meal becuase you don't care much for coke.
3) as of now, arpox 1/3rd of xbox owners have a kinect. that means devs are not concerned with supporting somehting taht only 1/3rd the playerbase has. if 100% fo people have it, devs will deisgn games to work with it. think of the future, don't be short sighted