I'm going to vent for a second here.
Back in like.. 2000 3d LCD shutter glasses were available at decent prices. Like you posted, they even had a variety of headsets that had individual small monitors for each eye, which would basically emulate the virtual reality you're talking about. I didn't have the headset, but I had a pair of glasses (I think they might be in my parents garage..), and I was enjoying some 3d back in those days. It's annoyed the hell out of me how every piece of information insists that 3d HAS to be in 120Hz. I was rocking 3d at like 60Hz, and it gave some people headaches (not me), which is why the requirement was bumped up. I still think it should be a choice that the consumer can make without having to pay extra for hardware that technically isn't needed.
As far as current 3d virtual reality... I don't think that's going to happen. I do believe that 3d movies will continue to grow, but 3d games are a novelty right now. I used to like playing games in 3d. It made them cooler, for sure. Something like The Undying in 3d was pretty freaky. But with time, Nvidia even stopped the 3d part of their drivers from updating, and you had to roll back to older drivers to continue using it for games. Not to mention that the support at the time wasn't amazing. You couldn't use shader/pixel effects with 3d at the time. Things like bump mapping wouldn't work with it.
But these days, 3d is something that's kind of tacked on for games, and I don't know if it will move past that. The hardware supply/demand doesn't warrent full commitment from gaming companies to really put effort into making solid 3d games. The glasses alone are typically 100 or so dollars, not to mention the ridiculous Nvidia bundle you need to get for PC 3d games. The price for 3d TVs are dropping, and that's a good thing. I think they will phase out regular TVs, and people will be getting them even if they don't plan on using them for 3d. It's nice to have something like that as a "bonus" for your TV.
I mean, full virtual reality gaming is not that hard to do, technically. Some kind of cockpit game (flight, or mech) with a VR headset and head tracking to follow where you look within the cockpit.. plus an appropriate controller, would be awesome. But how many people are going to go for that? People ---smurfette--- and moan about even needing to wear glasses for 3d.