No. You are not crazy. The arrival of the D800 did not disable or diminish the capability of a single D700 in the world. If you are satisfied with the capabilities of the D700, by all means, stay with it and maybe even add another to your kit. Very nice used ones are running 40% of the new price 18-24 months ago. I am shifting to D800s because they do a better job of what I do mostly -- photojournalism and aerial work. But I am keeping a D700 and battery pack, mostly for basketball and its 8 fps capability. Also, 8 fps on the D800 is half a gigabyte a second!
When I saw my first D700 images I said WOW! a few seconds after I started breathing again. It was and is a great camera.