Microsoft has gone on record and confirmed the price-point for the Kinect across the US, UK, and Europe.
United States - $149
United Kingdom - £129
Europe - €149
That is for the sensor bar itself.
If you know someone who does not have a 360 and they are waiting for the Kinect, there is a bundled option. Microsoft will be making available a 4GB 360 bundled with the Kinect and Kinect Adventures
for £250 ($299).Kinect Adventures
includes 20 mini-games that were demonstrated during E3. Microsoft assures consumers that there will be more than 15 Kinect specific games available at launch including Kinectimals, Kinect Sports,
and Kinect Joy Ride
. They will all retail at normal software price point of $50 (£40).
There will also be a bundle with the Kinect sensor with Kinect Adventures
that will retail at the same price of the sensor bar itself. Aaron Greenberg points out that this is a solid deal since you are essentially getting a retail game ($50) for free, or you could at it as you are getting $50 off of the sensor bar.
The Kinect will go about destroying homes November 4th in the United States. No other regions have a confirmed date of release from Microsoft, at this time.