I hate to be "that guy", but one of the major variables in whether VR takes off is going to be non gaming uses. I.e. Did you know Sony has some sort of deal with Pornhub.com, which is why it works well on the PS4 (or so I've heard..). If "production companies" take advantage of VR then expect those things to fly off the shelves (and right at your face....) Things like that are going to jack up the number of headsets in the wild and developers will then see their proliferation as a valid reason for support. The most important thing is it CANT be like the kinect where it's forced down your throat while hamstringing your consoles power by friggen 10%. Developers will not support it if they have to do more with less to do so.