George, don't knock your old D200: I use mine far more than I do its younger sister, my D700, despite knowing the latter has better stuff inside it (I am told). I think the love for the older girl is because of the way she converts my FF lenses... She also fits my moods better, I think. Like all love, it really defies and defeats analysis.
At the back of my mid there's also the idea that if I get mugged, then I'm losing something less valuable, though in absolute terms, I think the new D200 cost me more than did the new D700. But maybe I should abandon the fear: a mugging would probably give me my third heart attack anyway, so what difference would which camera make?
;-)
Rob C