I've been tracking this thread together with the one at redusers with great interest. My Sharp xv-z10000U is still going strong after 9 years (!!), but is obviously getting long in the tooth. I've been holding off upgrading until something truly revolutionary comes along. This could be it. The Red is promising 4k, 4k passive 3D, high lumens, and no bulb all for less than $10K. We'll all have to wait to see if and how the production units deliver on this promise. But the initial reports on the beta unit sound pretty good. While I don't relish the thought of replacing my screen, I'd be willing to do it if everything else pans out and if the cost isn't too high.