I’m beginning to wonder if Nikon is transitioning to an FX format dSLR manufacturer only. Consider this; dSLR technology is rapidly approaching its apex. Most new features are tied to speed, performance, ergonomics and workflow. Advances in image quality continue but at a much slower pace. The D800 may well be the apex of resolution capabilities of current technology and possibly even dynamic range. It will take significant advances to get D800 and D4 users to upgrade.
If camera bodies are maxing out in terms of technology……how will Nikon continue to grow and drive sales? I think they are moving their full lineup over to the FX format. The D600 is a prime example. A camera like this will attract millions of DX users…..most of whom will need to begin investing in FF lenses….very profitable FF lenses.
My guess is that Nikon will phase out the DX format within eight years or two camera generations. For those with DX lenses…..they will still work and at 24MP, a DX lens on something like a D600 will still be a powerful tool.
Just my two cents.