A lot of people here bashed the 1070/1080 for their pricing. It seems that a lot of people care about price.
Who cares?
People will always cry about price.
Nvidia isn't stupid, they priced the 1070 at $450 and $700 because they KNOW those prices will work. They will drop later, but they know early adopters are willing to pay a premium. On top of that, it's the high end market that drives sales.
I'm not sure your skepticism of Nvidia when it comes to business practices at all, but Nvidia knows full well those crying about prices, chances are they NEVER were buying anything anyway. How many times do midrange customers talk about purchases but never purchase? P10 at 390x isn't remotely exciting enough to get midrange customers to make a purchase. You need something that evokes some type of emotion, and that's what Nvidia does.