Yes, I suppose you could term that a nutso size. I started with a 100" diagonal Stewart screen and a Zenith CRT front projector in 1990. It seemed small. I saw a high gain screen at a friend's place and liked the pop. So I tried the High Power when I bought the Virtuoso which for me has been great. I just went with the largest size that would give my seating a 1.5 times the screen width (about 16 ft back). Sometimes it seems a bit too large.
Anyway, the optimal situation would be a projector that I could set at the back of the room at about 24' and 4 feet down from a 9 1/2' foot ceiling to get the full benefit of the 2.8 gain of the high power without needing digital keystone correction.
The much initially praised Mits WD2000U @ 3000 lumens was considered then dismissed because of PJ Central's low lumen measurement when optimized for home theater and the 2X color wheel.
The Mits HC-3100 looks pretty good at Cine4home's measured specs given below but lacks the lense shift necessary to optimally utilze the High Power's gain without introducing the need for digital keystone correction. And, would require the leap of faith about reliability that would be required to purchase from either a Canadian or Japanese export seller. I think the Mits is good in this regard especially compared to the reliabilty issues that so often surface with the Optomas.HC-3100 - Measurements "D65 / 6500K "
Mode Light Low High Contrast
Iris closed 490 620 3000:1
Iris open 780 970 2300:1
I was just hoping someone would say that for X dollars more the ..... would blow away the Mits HD-1000U. But so far the HD-1000U or the HC-3100 seems to be a good compromise for brightness and contrast in the sub-$2000 price bracket if you can live with the import risk of the 3100 and the necessary digital keystone correction to utilize the gain of the High Power. Vertical lense shift would be nice though.