Of course, this isn't a "need"; however, it is a definite want. So, who here has some mullah they would like to invest in my purchase of one of these. I promise I will post my findings to the forum :)
They are never very good, because they are multiple projections onto one surface, and the light values seem to shift a lot from projector to projector.
If they could do it with LCD or something like that, we'd be talking a much better display and thinner too.
Well, there's only one way to put these questions to the test: fork over some funding and I will test it out and give a recommendation to the forum... just send the money to my paypal :)
You'd do much better building it out of Christie Microtiles. No problem with brightness, way wider gamut etc. Then again they are around $5,000 per sq foot.