I'm sure people could find a gaming use for them, but if you ran a game dev would you assign people and time to something that only works on PCs with a £2700 graphics card?
Of course. Today's premium product is tomorrow's commodity.
For a 73% increase in die area,and a 76% increase in transistors,FP32 performance has gone up by a whole 15% in FP32 performance and that is on a "new node".
Is double precision useful or relevant when dealing with 10 bit colour and high dynamic range?