I spent close to $4,000 on a Nikon D850 which needs a be card I am told. It was sent Nikon over a month ago. After two weeks I was told it is on Parts Hold, whatever that means. If Nikon USA doesn't have the part, who on earth does? In any event, I waited patiently for another week and was told that it is now in the shop. Yes, I am finally getting somewhere. Nothing for another week (now 4 weeks) and I am told that it is on a Parts Hold AGAIN. Does the right hand know what the left hand is doing? Apparently NOT. I switched from Canon to Nikon, and I am seriously considering going back to Canon and biting the bullet. D850 is a great camera but the service of NikonUSA is half a star at best. PATHETIC!