As long as they allow them on PC (I know they don't 'allow' them, but from reading the forums you'd think everyone and their dog was freely admitting to using one) then PS4 players are inherently disadvantaged by their absence. I don't mind not having one personally, but knowing that people are parsing me bothers me when I can't view the data myself. Having something similar which worked with dummies would be interesting for trying out new things, if nothing else.