It just doesn't pass any kind of common-sense test. People don't really want to spend large portions of their lives wearing goofy headsets, seeing things nobody else can see. Even if (when) we shrink the screens down to the size and weight of regular eyeglasses, I don't see it. It is not compatible with anything else... you have to completely cease all other activities and utterly devote yourself to your VR experience, sealing yourself off from the world.

VR definitely delivers a pretty awesome experience when done well, don't get me wrong. I think it will hang around and have its fans. But, game-changer? Never.