Kind of what I was thinking. D200 does everything I need well for now. I've been thinking my next camera would be full frame, but a D3 is a little steep. My local shop would take the D200 in on trade on a D300 but it would still be another $1000 out of pocket... Once they have a few used D200's I don't think they would offer that.
I have thought about it...a little. I will wait till the D300fx comes out before think about upgrading from my D200. Just think how all these people that rushed into getting the D300 are going to feel when the D300FX has D3-esque noise control and IQ.
D300 Nikkor AF 50mm f/1.8D, 24-70mm f/2.8G, 70-200mm f/2.8G VR, 18-135mm f/3.5-5.6G, Sigma 10-20mm f4-5.6 EX DC HSM, 17-70mm f/2.8-4.5 DC Macro