I don't follow their logic on how its a price cut of 100, seems like entirely different SKUs.
Xbox one and Kinect for 429.
Xbox one and Kinect for 399.
Xbox one without Kinect for 349.
Xbox one without Kinect for 329.
It depends on how you look at it.
The US dollar is stronger than the Euro (at the moment anyhow). So, $329 euros is about $422 in US dollars… and given that XB1 launched in the UK at $429 euros, that's about $551 in US currency. So, you have a loss of about $129 US / $100 UK - between the original starter_step-in_kinect_sku and the newer kinectless sku. I believe MCVUK is giving a general blanket statement across the XB1 brand, not at the particular sku level.