Might be due to lower supply because of GDDR5.
This is correct. They're dumping the pre-orders that people haven't picked up. That's why you're seeing Day One editions coming back in.
We got word from an employee two weeks ago that they were doing that at our local Best Buy, and we were able to snag one for a friend.
I figured they would have a hard date as a company to do this, and have done it all at once.
Maybe they're shifting stock from places that aren't turning as much business.