Two days ago I got lucky and scored an EVGA 1060 6GB FTW+ for "only" $390 from CDW. I had them ship it overnight and as of last night its humming way nicely in my PC. It took me almost a week of constantly checking online retailers until one popped up. Pure bonus it turned out to be one of the higher spec'd 1060s too.
So if you're persistent, you may be able to find something that's not priced too insanely high. It took days of constantly watching all the online retailers before it popped up. They were only available for about an hour before they sold out again.