These sets must be in pretty high demand. I ordered a P75 through Best Buy's site on Friday, June 3rd, with a home delivery date of June 11th. I thought "Phew, glad I ordered when I did", because right after, they were unavailable again. Everything looked fine. The next day, I checked my order status online, and it now shows as back-ordered. *Sigh* It still shows the same delivery date, but I doubt it will happen.
What hurts is that I had an opportunity on May 31st to order it through a local Best Buy store and have it by June 3rd. There was only one available though. At that point, I hadn't done much research and they only had the P65 on display with nothing connected to demo. I was leaning toward the Sony 75" X850D anyway, so ordered. Of course, I wound up doing more research on both the Sony and Vizio, then had buyer's remorse. I wound up cancelling the next day and going back to the store for the Vizio. Well, what do you know, there weren't any more available.
So here I wait, not knowing when.