That's true, Stan, and it's something I did not realize until the above posts!
The crop mode on the D600 for using DX lenses, if you wish to go that way, is very respectable too.
But, it is a nice surprise, and others might see it that way too when they do a head count of their lenses, that they already have plenty of FX lenses in their collection! -> it got me to pre-order the D600 anyway!
And, of course, if you have been stashing away older Nikon lenses, the D600 seems it will handle all of them, even the Manual ones, very well too. The F Mount lives on!