Brent, some years ago my D700 was involved in a very freak accident , while shooting a Soccer Match, and was dead. Nikon India replaced the PCB board and it was fine thereafter. Cost around 20K IRs (approx. 400$ at the time) . Since you like the camera I would at least see what Nikon says. My personal feeling is that the D750 is a better camera even with the lightly slower FPS. In another weird accident I, and the D750, went for a swim and my local service centre manager (a friend) said it was better to buy a new one since the cost of repair was too high. NPS offered me a deal but I have too many cameras and decided to wait and see the D850 or D760(?).
I sold my D700 a while back to a nice young man and he loves it. Although I loved the files I just got tired of the weight of the body w/MB10.
All the best
Tom
ps I did sell the D750 to a friend for parts
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Edit: I did have a D610 and it was a good camera but sold it at a loss as soon as I could get the D750. The D610 was just not the all-rounder that the D750 is. I really wanted the larger Focus Point Spread, FPS and , although it sounds a bit silly, I really missed the Image Review by pressing Centre button
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