I read NSC latest report. It seems they are replacing the shutter even after warranty and if they are not able to solve the problem, replace it with any camera. That is good news. Maybe it is a good time to consider a pre-owned
Yesterday while I was in a camera store, I mentioned something about it being a good time to buy a pre-owned D600. The sales rep said he thought the shutter replacement was for original owners--although Nikon's web site doesn't specify.