please pay attention that the limitation is your room and NOT the pr.
when we talk about rs20 and lumis and other high cr. pr.
i saw the rs 20 at a dealer that have a bright room and i think the pr. was
i am sure they not have more than 1500:1 on off visible at the screen.
possible less than 1000:1!!!
this rs 20 look worse than a early 1280x720 first gerneration lcd in my room!
its the room and i know why my cinema is a black box with all the not nice
looking carpet and velvet.
i desing it this way as some day i think we can have beside the crts one bright pr. that have much more cr. than early 3 chip 1280x1024 dlps or 1280x720 lcds.
seams now this time has come.
the hole discusion reminds my to hd bds vs dvd.
when people compare both with a 1280x1024 lcd 32" wide in 177" distance and than they say oh no difference dvd looks as good as blue ray
so look again where is your bottleneck may its not your pr.