Anyone have experience with monitor-glasses?

I had actually once considered using these things as part of a research project in computer vision back when I still did that, but never ended up going that way. I recently got interested in trying out something like this with Flight Simulator when I started building a head-tracking device. Head-tracking is really, really great but when paired with a single 21" monitor can hardly be considered the best. Seems like I won't be satisfied until I get complete visual immersion -- which looks like it means monitor glasses.So, does anyone have any experience using any of these things with flight sims? Seems to me that the big downside here is the price -- they aren't much of a hot consumer item so there isn't much price pressure here, and if I wanted something with okay resolution I'd be looking at shelling out upwards of $1000 for a resolution of just 800x600 -- ouch! One can hope that these become hot consumer items in the future, and development becomes way faster-paced than it is right now...