If they're able to actually create virtual realities (holodeck or matrix style, but without the needle in the head) I'll be very excited. Until then it's still only displays in front of your head and I think the goggles like the occulus rift have a lot of potential to make people actually hurt themselves....
I can already see the headlines:
"Gamer broke his neck while using Occulus Rift - He couldn't see the chair!"