I have the D7000 and the D7100. The former is a great camera but the D7100 is better. Wouldn't you expect it to be if it superceeds the other? Nikon knows what it is doing or it would soon be out of business,
What the removal of the low pass filter has given me is incredible detail on images. Beware of salestalk - it depends on what models the salesman is trying to shift and what he has in stock.
The technology you get for your money is absolutely amazing and the extra pixels are of immense value to me in wildlife photography.
Lenses are important, probably more so than a body but you also need the most up to date platform you can afford for them to work on.
Never having handled a D600 I cannot comment on this body but I can vouch for the D7000 and D7100 and if money or a lens upgrade are not a priority then I would, without hesitation, go for a D7100
- Daniel and Carl Gernazio like this