I am finding Nikon's upgrade path increasingly frustrating. The D800 is out of my price range and more camera than I need. The D600 is priced okay but a bit beneath my expectations, particularly regarding the frame rate which I think is the same as my D200 and less than the D300.
I'm very fond of some of my current DX lenses which were not cheap. I like the DX format. I love my D200 but with changing interests I'm finding that I need higher frame rates and much better high ISO performance. I want pro, or close, body construction, I do not want scene modes cluttering my dials and buttons and limited attention span.
What I want just screams D400 (or whatever you wish to speculate that it will be called).
Buying a D300s two years ago _might_ have made sense. It does not now.
Not sure which way to turn. People have been saying "wait a little longer" and "it will be soon" for _years_ now. That advice is starting to sound hollow.
The D600 intro video has me very concerned as it spends significant time explaining how it was designed to function with DX glass.
I'm worried that my needs must either be unreasonable or so atypical that Nikon can dismiss the market I represent.