ralf wrote:
By all means, get the D850 which is maybe the best general-purpose camera currently available on planet Earth, and my own favorite.
I would keep the D500 for action shooting, as it excels at fast shooting -- it's fast and has a virtually bottomless buffer.
Also, the DX crop factor can be an advantage when shooting [wildlife] with a telephoto lens...
I'm not sure what you mean by crop factor but if you mean magnification that is something that you don't get