I want to make HDR paintings that can be displayed on HDR TVs and Monitors but photoshop seems to only display SDR. There's no difference in the lumanence from the display of the color White +0 and the color White +1.
For me HDR is one of the most important display innovations since HD and making content based around it even images would be useful. Since many image viewers support HDR color now days.
I'm sure there would also be benefits for things like games which HDR textures are very useful and being able to better visually read value differences beyond +0 would be useful.
I know premiere supports display HDR, so I also imagine it would be useful for making sprite/image effects for video, or animation.