I think demand is too great and compute is not enough. Nothing to do with billionaires colluding to increase prices by 3x.
I think it is priced high because it's basically their smartest model as well as their fastest, so why shouldn't they?
You can still use earlier generations of Flash at a lower cost if you want "fast and cheap and just OK," which often makes sense. (Just checked)
I would predict they will lower this price when 3.5 High appears, but perhaps not all the way.