When people can have the sensations of sex in VR porn media, without needing to interface bodily fluids with pieces of hardware, then porn VR will, in the words of Dennis Miller, "make crack look like Sanka." Or perhaps, when porn media makers figure out how to work the current forms of immersion to their advantage, there will be an uptick.

Right now, the increase in the quality of experience of VR porn over a screen and a pair of headphones is still marginal.

I have watched some VR porn. It's nothing to write home about yet. Maybe in future.