How dare you , these are kid ' s germs , it ' s not dirty . sarcasm <| sep |> If you were married check your state laws for alienation of affection . <| sep |> What difference would that make ? <| sep |> Better build quality , faster burst speed , superior autofocus . It also has a slightly better sensor at high ISOs , which is saying something sensors hit a brick wall a few years back , and any improvement over the norm at ISO 3200 is worth something . The D 750 is a D 7200 with a bigger sensor , more or less . The D 500 is essentially a D 5 with a permanently mounted 1 . 5 x teleconverter . If you can ' t afford $ 18 , 000 for a D 51 D , a 4002 . 8 , and a teleconverter , it ' s probably the best you can buy . <| sep |> I have both , which one do you want ?