i believe to get native 16:9 the projector would need the 2nd generation DLP chipset.  That chipset alone still costs thousands of dollars.  Which would make the pricing on the Dell projectors sky rocket.  The chip alone is as much or more than any Dell projector sold today.  There is likely other reasons, however after discussing such details with some local high-end theatre shops, the 1st gen DLP chip was one of the reasons the lower-costing projectors can still support scaled down HD and keep their costs low.  If you are looking at 16:9 native, true HD (and possibly 1080p, with some of the newer projector releases) you are looking at $10k+ ...and it's not unusually to find $30k+ projectors.