I would definitely wait as well for the technology to improve, and cost to come down. I recently was looking for a new TV, just bought a regular LCD, but while I was there I looked at the new 3D TV’s. If you have not yet I suggest you go down to your local electronics store and look at one just to see.
I was not impressed with it’s 3D capability, it was not as impressive as say IMAX 3D for example. I’m sure in a couple more years when the technology matures there will be more content, and more of a “need” then I would think.