If you haven't tried it YOU JUST DON"T KNOW.
I have the Nvidia glass and use 2 8800 GTS 512 mb cards to run it on the 120 hz samsung monitor. I.d have to say that when the 3d is working well, it is truly AMAZING. MASS EFFECT in 3d is beyond belief! The biggest problem is that most games aren't made for 3d glass. This cause some incompatibilities that can be annoying, but in the games where it does work, well it is awesome.
I've been very skeptical of 3d (the whole paper glasses thing never worked for me) and my friend had the previous generation of 3d glass from Nvidia back in 2000!? Anyway, they didn't work very well, but these do.
The glass are fairly comfortable, and fit around my prescription glass also. Better to wear contacts though. As for eye strain, I didn't experience any with this setup, but did with the previous generation glasses. So that problem seems to be fixed.
Problems: I get a little ghosting, especially when there is a white light next to black. I thought this had to do with the response time of the monitor, but some forums lead me to believe this problem is less pronounced with the GT200 series of cards. I really don't know why though. It could be my framerates are dropping below 120. I haven't installed fraps to check it.
The glass only work with windows VISTA. Since I don't have vista, I installed windows 7 64 bit. This operating system seems to be unstable with many of my games, and was made worse with the installation of the 3d software. For some reason, toggling 3d on and off seems to make the system completely hang.
conclusion: If the next generation of games is optimized for true 3d, and 120hz monitors become normal(why wouldn't they, I mean I would have bought the monitor anyway for my FPS), then this technology will be the next BIG thing. It is more impressive than physics, but should be awesome with physics combined. Although I haven't played left for dead, I've heard this tech is awesome in that game also, but try Mass Effect, you won't be disappointed.