I have always been s Nikon girl and I still love my D500. I have kept it precisely because it is not full frame so the lenses shoot longer — nice for birds and for moon shots. But I have to confess that I LOVE the mirrorless systems my sister has a Fuji and her photos are amazing. I made the jump this fall. I, literally, made a 16 page spreadsheet comparing the Fuji, Sony and Nikon. The Fuji is the lightest. But, in the end, I just really like Nikons. I’m adding a lens at a time. I’m keeping my fingers crossed that they will make a new long lens for it that is not ridiculously expensive. I have a 500 mm for my D500 and I absolutely love that lens. Photography is so fun!