I agree that the #1 reason stated is not true simple because I waited four month to get my copy. Whether we are happy or not with D800 is not really a very meaningful question. The real question is is whether it is our go-to body. I believe for D800 it is a yes for sure for most.
The introduction of a step change system, for D800 the 36MP, is always followed by seemingly serious technical issues, besides the emotional ones, like buyer remorse. A good example way back is D200. I could remember I read through all those posts here on the banding issue. At that I could not afford one so I did not have an emotional response to it, but it was quite educational to me then.