My opinion is that Nikon has done a great design job with their cameras, I enjoyed using D3, D3x and D700 while attending photography classes - great cameras to use. The D800 appears to be based on similar design as the D700, but QC....
A great design needs to be followed up by adequate QC in manufacturing, to make sure all units are up to standard before leaving the factory. All the posts still indicate to me a QC problem on the D800 - some people has great working units, others are not so fortunate. These differences indicate QC issues to me. I hesitate to buy an expensive ticket in this lottery until I know more.
The lack of honest and straight-forward support as mentioned by Paul Watkins is an attitude I would like to see Nikon reconsider. Nikon: Please come forward, identify the issues, clarify how to get them fixed and advise after which serial number QC has been improved.
Finally, please also make a firmware-update to fix the only design-flaw mentioned I believe is major, the dark live-view screen making manual setting and focusing hard in poor lighting (e.g. when shooting with studio strobes) mentioned in a number of posts on the net. For me, this is one of the two intended uses for the D800 I was considering.
Who knows, may be a good alternative appears before Nikon gets things sorted...
Contrary to some other buyers, I am not in a rush.