I think the US has got the better deal here. $149.99 with a launch title worth $59.99. Essentially saving $60. Your getting Kinect for $89.99.
If you were to buy Kinect Adventures your looking at $59.99. This makes Kinect on it's own a good purchase as you have something free to play on it, that you would need to buy a game anyway.
As for the UK. Yes it does hurt that our games stores are being this bad in hiking the price up. £129.99. Ok so our games are £39.99. So we are really getting Kinect for £89.99.
Also UK is getting screwed for the Bundle price to. US M$ has the bundle same price as the 250gbhdd 360s.
In the uk Kinect bundle is £249.99 and the 250 gbHDD 360s is £199. WTF? We are being charged an extra £50 more than US customers for Kinect bundle.
It's still an awesome price against Wii and PS3.
But cheaper or not. UK is getting screwed when there is no need.