The only people I know who purchased VR & regularly used it were weathly, childless and had enough spare space in their house to dedicate to it. Yes, you can blow $$$ on a pc but the footprint of a pc is much smaller (a desk+ chair against a wall) vs how much clear floor space they had set aside for VR.

I personally believe that VR of the arm swinging/interactive variety will never be widely adopted due to the cost of real estate in the tech savvy, trend-setting consumer population centers.