JonK really expressed the essence of FX for a lot of us. While I love my D1X, I've never made peace with that annoying crop factor. As a 30-year Nikon user, I want my favorite lenses back to the perspective I bought them for. My 24mm f/2, in particular, has long been one of my favorite lenses, but it's much less useful to me as a 36mm on a DX camera. It even looks funny fitted with the lens hood off my 35mm lens! But there's no equivalent lens in DX format.