I gone through this much too long and decided to get the D7100. I wanted the D600 but as someone stated here “It would always be in the back of my mind about the dust issue” and you are right. I also did some figuring on cost. D600 2,000 + 16-35 lens---3,359.00 D7100 1,200 + 16-85 629.99—1,829 A difference of 1,530 with my selections. Is this “at this time worth it”? I mean 1,530.00 is quite a bit of change. I have decided no for me. Therefore, for now I will use the D7100—with my 50mm 1.8 and 70-300 VR. In addition, I might possibly get the 35mm 1.8 DX lens for 200.00—not a bad price. Which will give me about 52.5mm. I remember early in the 80’s I bought one of the first autofocus cameras “Minolta 7000 I think it was. I used it for years with only a 50mm lens, did not even consider a zoom” and had a great time and learned a lot.