I have not taken any photo using either camera but reaviews are good for both D7002 and D600. Like all products, manufacturers don't make things cheaper and better to kill their higher end product line.
However, I want to believe it will come to a point where we need to know those 'extras' are necessary. My D300 is holding well and I see prices dropping every other months. I think I will hold and unless technology improves, fx is the only way to go.