Just bought one a couple of months ago. At the time, Nikon had a second year's extended warranty free if you registered your camera within 30 days of purchase. I don't know whether it was a limited time offer (?) I would never take out an extended warranty. If something is going to go wrong with your camera, it's more likely to happen in the first year, otherwise much later on through wear and tear and I think that extended warranties are a bit of a money making scam with little benefit. Personally I would rather spend that money (and a little more) and add it either as a standalone full insurance cover for the camera and gear or as an add-on to my home insurance to cover more than what the warranty covers.
As for the camera, all I can say is NO REGRETS!!