It's just another 3D TV technology - sounds cool, is cool, but not in a long term way. Nobody cares much about 3D TV anymore because in practice it wasn't all it cracked up to be. It was hype.
When you strap a display to your head and replace your mouse with your own neck muscles, suddenly you are more limited than before. You can't rapidly spin 90 degrees to face an opponent in a fast-paced action game for example, without hurting your neck.
When you're sitting at a normal computer screen, you can look away for a second, out the window, to think or pause. Can't do that when the monitor is strapped to your head.
When you're typing on a keyboard, sometimes it's helpful to quickly glance down to target a specific key. That too, is gone with a monitor strapped to your head. There's a bunch of other limitations that will render any VR tech, no matter how advanced from what we played with back in the 90s, as just a cool gimmick... like the steering wheel controller with pedals. After awhile you sell it on ebay because it's not a long term thing.