A little confused with the release of the D500. I thought that with your camera you should look at great glass i.e FX lenses, meaning they are better than their DX equivalent. My question is that if you use FX lenses like I do 70-200 2.8 with my D7200 you arent getting the best out of the lens using a DX body. I will be in the future looking to upgrade to D750 or similar but as I shoot sports the higher fps is very appealing. Confused!!!!