Unfortunately display technology is advancing so rapidly that pretty much every year you'll get a news article saying "They've 'solved' the 3D problem with modern displays" and then say that people who have been holding off from 3D ought to buy now. They'll do this every year until they actually 'solve' the problem.

Until modern games come out which render double but only require the game engine to update at half the rate of display I think you'll have problems with wasted performance. You're not really wasting 3D performance so much as CPU performance and thats the area which simply does not scale nearly as well. You can easily double your 3D performance but doubling your CPU performance is a multi-billion dollar question.

My ideal setup I was considering migrating to in the mid term (1-2 years) is a dual projector display system for both gaming and movies. Since the projector essentially blanks when not in use, you only have to display the relevant frame data with no interlacing and at full resolution.

The 3d in the 80s is not comparable to the 3d today. have you seen Avatar in 3d ? I am glad to see this development it is the beginnig of 3d and will end with full HD 3d without glasses in 15 years.
I will buy a 3d TV even if it wont be used too much this gen but 3d blurays some experimental games on the PS3 and I know I am future proof and can use the full potential of the next gen right from the start is enough to justifiy this purchase. I will wait for a plasma 3d Tv 42 Inch and I wont have to buy another TV for the next 10 years. Until the real 3d without glasses starts.

1: they look stupid ? I dont care Wii playing can look stupid too, a lot of things can look stupid and you are in your living room and not in a club so I really dont care if it looks stupid. Yes you need 8 pairs of glasses if you want to watch it with 8 persons.
2. Yes you have to wear 2 pairs at once. 
3. Most people havent bought a HDTV yet. 35% of them have one. So there are million potential customers out there. Plus some Million early adopters across the world. And it is not that hard to sell a TV on ebay and buy a new one.
4. Yes it is. Analglyph 3d is old but this technology is newer and the thing is the movie/game makers start to produce games in 3d its definetly another experience go watch avatar. And then watch some analglyph 80 movie this is like monochrome TV vs HDTV.

It will be like always some people which dont mind the costs will buy it the others will follow if its more affordable. 
The 3d advantage of the PS3 is small and I dont think it will have a big impact this gen but maybe 3d Blurays will take off and if prices for 3d Tvs will be affordabe it could make an impact the effect on games will be minor. But I dont care 3d is a good thing and I want to be prepared for the future.

If its ok with you and if I decide to do so Ill PM you so can recommend me the hardware. Ive been using 3D movies for about 5 years on the CRT, I cant wait to also game in 3D. The 2D to 3D converter I have isnt working too great for image quality.

Yeah man, sounds good. I went through a lot of trial an error to get things going on the PC and will gladly help anyone that is setting this up.

They say on the 3d vision box that you need a Nvidia 8800 or higher video card. Well they are fucking liars! :)

I haven't been able to get a good 2D to 3d converter myself. Tridef has one but it works so-so...

Thats great, thx, it will save me all the trial and error ;). Hope you still here in about a year lol.

And I quote wikipedia for your pleasure:

"A commonly-held misconception is that film projection is simply a series of individual frames dragged very quickly past the projector's intense light source; this is not the case. If a roll of film were merely passed between the light source and the lens of the projector, all that would be visible on screen would be a continuous blurred series of images sliding from one edge to the other. It is the shutter that gives the illusion of one full frame being replaced exactly on top of another full frame. A rotating petal or gated cylindrical shutter interrupts the emitted light during the time the film is advanced to the next frame. The viewer does not see the transition, thus tricking the brain into believing a moving image is on screen. Modern shutters are designed with a flicker-rate of two times (48 Hz) or even sometimes three times (72 Hz) the frame rate of the film, so as to reduce the perception of screen flickering. (See Frame rate and Flicker fusion threshold.) Higher rate shutters are less light efficient, requiring more powerful light sources for the same light on screen."

I agree, the glasses are great but impractical.

It's like you have to charge it everytime and it doesn't do anything else but 3D

Imagine yourself playing Cod 3D with all your friends and they all needed glasses. lol