I own 6 Nikon cameras from the D70 to the D3s. The surprising thing is that the colours in the new D7000 is like nothing that I have ever seen in any of the previous models.
Saying that, so this would be the primary reason for me to upgrade to the D800. More accurate WB, along with a better metering system should be simular or even better colour reproduction to the D7000.
The Mega-pixel hype along would have not been sufficient for my want to purchase this body.