The reason the Xbox 360's Kinect costs so much is because its a relatively new add on for the xbox. The Kinect lets you put the controller away and play standing up. The Kinect has popular games like Dance Central, (you dance), Kinect Adventures, where you go on all kinds of adventures making you feel like your really there; and another popular game, Kinect Sports, where you can bowl, play soccer, and so much more. (Kinect sports is really an updated Wii sports that doesn't require any hands) hopes this helps!
The kinect will cost around £120 ($180 approx).
Kinect +Xbox Is 1000 Kinect camera is 600
There is no such thing as a wii kinect.
Its a Xbox kinect and go to GameStop .com
Together they cost about $300
$50
one fifty
$50
It is 100 at best buy
at the most $200
Kinect is a Microsoft product and is currently only available for their Xbox 360 console
In France an xbox 360 and a kinect with the game kinect adventures costs 299.99 euros ... If that doesn't help try begging your parents to take you to a shop so you can look and see for yourself.