There was some sort of notification that Nikon won't sell parts to 3rd party repair facilities or to equipment owners. That offers a scary outlook for getting repair from anyone other than Nikon.
And I hear, but am not sure, that the official repair stations won't work on graymarket gear.
Rather pretend that I'm an expert, since I live 10 miles from the Nikon facility in El Segundo, California, I'm going to drive down there and shoot a few questions at them about my gear. Nothing is broken, but there are things I don't understand.
I'll see if I can't get something definitive in print about their policies and then post them here on the forums. I've spoken with them once on the phone and they seemed very hospitable and casual. Say stay tuned.
I will title my posting Repair/Warranty Rules According to Nikon. Look for it next weekend.