Based upon my own experience, you don't need a thoroughly darkened room to enjoy a modern projector, although you do need some light control. A good projector will run $2,500 to $3,000, especially now as new-model introduction time nears. An 80" or 90" flat-screen TV will cost as much or more than a projector. You can always improve light control, if necessary, and you can enlarge the picture with a projector by zooming out and purchasing a larger screen. Try that with a flat-screen!