I just took delivery of a D7200 from B&H, purchased for broadband conversion. The price was good because it was listed as OB (open box) which means a return. The first unusual thing I noticed was the serial number of 672****. Roland Vink's site lists this series as being of unknown origin, perhaps Asia. Well, I suppose this camera could have originally been gray market. Then, when configuring settings in the menu I noticed that the time zone was set as Zulu and the year was set as late 2015. Again, I suppose the camera could have been sitting around for a while before being dumped on the gray market by Nikon. Checking the shutter actuations (something I had to look up how to do) showed five actuations including at least two that I did. So this really is an older D7200 that has not seen photographic use.
Now my dilemma is whether to return it or keep it, given its likely gray market status. There would not be any warranty in any case (for this unit or a replacement) because the broadband conversion process voids any warranty. My concern is over the feasibility of repairs if they're needed at a later date, especially give Nikon's parts policy.