What is Nikon Thinking? D300S, D7100, D610, D...

With the release of the D750, I’m starting to wonder what Nikon is thinking with their lineup.  Shooters I know are waiting for a true replacement for both the D300s and the D700.  Arguments can be made that the D7100 replaces the D300s, and the D750 replaces the D700.  However, an equal number (and maybe more) arguments can be made that no replacements exist.  In this post, I’ll quickly cover some of the specs that differentiate the cameras that are current in the lineup.  Nikon has a lot of bodies on their site but I wouldn’t consider many of them current (D90, really?).  Here, I’ll just look at the D300s, D7100,...