I already had a D800 and the D800e was not available. The D600 was the "Latest" and NAS told me to get it. It was cheaper and lighter than the D800e.
However, I did not like the controls as well and it hurt my fat fingers. So, I tried to trade it back in for a D800e. But, the D800e was still not available. Then my wife (second shooter) decided she liked it better than the D800 she would inherit so I kept it.