Within the context of the discussion in this thread, the 1070 is not really worth ~$150 more than a 1060 6gb or 4808gb, correct?
Yes, despite what all these people think, it's a waste of $150 if you've got 60 Hz monitors and are willing to game at High, which is going to have upwards of 50% better FPS with little to no discernible quality difference. Seriously watch, the video unseenmorbidity linked above, particularly around the 3 minute mark. Medium gets twice the framerate, while looking 90% as good and only when pausing and actively looking for differences is it easy to spot them.
Gamersnexus typically lists the 1% and .1% low framerates, so their 1070 review is particular telling: http://www.gamersnexus.net/hwreviews/2453-nvidia-geforce-gtx-1070-founders-edition-review?showall=1
In the 6 games they have 1%/.1% lows for, in only 1 game does the 1070 dip below 60 FPS, and that's for under 1% of all frames. Meanwhile, the other 99% of the time it's overkill. And once again, this is on the highest settings.
Also keep in mind this is the Founders Edition version of the card with no OC at all, so this is the worst-case performance. Buying a third party card, you could expect to add about 5-10% on average to each of those. If you bother to actually look at the numbers, the 1070 is overkill for 1080p60 gaming. Anyone claiming otherwise is not making an argument based on facts.