Personally, I think the biggest problem with VR is that it's downright dangerous. I tried a professionally setup and monitored demo of HTC vive inside of a Microsoft store, and walked into the wall. They needed somebody with you to help make sure you didn't get tangled in the wires - during a 15 minute demo! And people still did, repeatedly. Until there aren't cords and something like the Omni treadmill comes around to handle movement without physically moving - I just think it's not practical or safe as a technology for games other then flight and driving simulators.