I agree, for people with a D300, stick to it and enjoy the great gear you have. But for people like me wanting to upgrade from a D80 the D700 seems a more logical choice. There are two possibilities: 1) DX wins, 2) FX wins. If DX wins I will happily switch back to DX and my glass will only get better, although with a a 1.5 crop factor. If FX wins (which I think is with the odds) and I would buy a D300 now, my glass would not only be very different when switching to FX but also the DX glass would by much less usefull on an FX camera. Besides that, I love to go wide and FX provides just that.