On screen, how bright should a projector be? I believe I read one time that most commercial theaters are somewhere around the 15 foot-lamberts area of brightness. I've seen some reviews of home projectors that would measure around 6-7 foot-lamberts on a 100 inch screen. How important is this. I know that most direct view crt tvs are in the 25-45 foot-lambert range. So would this 6-7 be horribly dim even in a cave like dedicated home theater?