As an indie gamedev myself. I can think of dozens of potentialial games that'd likely work well in be and not on monitor. And don't require physical movement and can be done sitting with swivel chair. Having the limit of not being able to run around may be disappointing to some. But any limit just forces us to innovate and achieve greatness thru new paths.

There are several instances in last 150 years where a patent or some other restriction caused others to innovate around a restriction and the end result was far superior because of it.

I definitely see that happening with vr.