I should add that the aberrant pricings were the 1080Ti, 2080Ti. Performance per dollar was terrible. 2070 to a lesser extent, the Supers were put in place to punish AMD, but made previous non-super purchases look like bad investments.
GTX1070 was $400 at launch, which was somewhat against inflation, but still riding that high end price point. GTX1080 was a little over-priced, but not terribly so when compared with the 1070.
All in all, they've done a decent job. And if you are stuck at that $300 price point, still very competitive cards that will get you gaming at 1080p.
These bigger cards are catering to an audience that is moving rapidly towards 4K gaming. So quadruple the need at 'less then' quadruple the price.
I can tell you I am not super interested in spending $1200 on a card, why I didn't go for a 20 series upgrade (and I am sure lots of people were in my shoes, which is why the pricing is so favorable this go around)