Then there's movie viewing. While I would pick any number of other projectors over the Optoma for filling a 100 inch or 110 inch diagonal projector screen with a movie on Blu-ray, in a fully darkened room, all of a sudden, I found I could enjoy movies including dark scenes, with lighting that I normally would not allow in my theater with my JVC projector, the Panasonic PT-AE3000, or any number of other home theater projectors. That small amount of ambient light that ruins dark scenes significantly with most projectors, is far less a factor with the HD806.
As a result, it can be an excellent choice for a family room, or a more dedicated room with a very large screen. You have to look to the brighter InFocus projectors (like the IN82 or IN83), to match the Optoma at its brightest, and those projectors don't have as many lumens in their "best" mode although they also can rival the Optoma with other modes that are also very good in terms of color. The thing is, those are much more expensive projectors. Some of the 3LCD projectors can match the maximum lumens of the HD806, but as I said, not with the color accuracy, and they can't begin to fill larger (over 110 inch screens) in their best modes.
As a family room projector, I expect many owners will pair the HD806 with pull-down or motorized screens, as opposed to the fixed wall screens that usually are only found in more dedicated environments.
Bottom line: The Optoma HD806 is relatively unique projector, that should work well for a significant number of people who are looking for a good solution for general use. Hard core movie/home theater enthusiasts will most likely buy other projectors, but there are plenty of folks out there, for whom the HD806 makes sense!