You really want to wear one of these things for hours at a time? Can't see your controls. Knocking shit over when you reach for a drink/food/smoke. No thanks. And the only thing it's really practical for are FPS' and even then I can see some limitations and problems with it. It's like every other impractical gadget. It's neato for a while but after a few weeks you'll never touch it again. And that says nothing of how the reality will likely be only a handful of developers utilize it for a handful of games.
"The horse I bet on was so slow, the jockey kept a diary of the trip." - Henny Youngman