>It will be a long overdue upgrade from solid DX body, like >D300/s. Will you buy one to replace? What is the major >feature you would want in the new DX body not possible in FX?
With an FX body, I could not use my 70-200 at 200mm and get a 300mm FOV without cropping (which I don't want to do) or walking up closer to my subjet (which can be a problem if the subject is across a crowded room, on a stage, or just a hungry bear ...).
Just give me a D300 style body with the latest DX sensor and I will part with my money.