I need some thoughts/recommendations about which JVC projector to go with. I have these choices: (a) new calibrated G-15;(b)used(approx. 250 hrs.)calibrated G-20 for only slightly more than choice a; and (c) new, calibrated G-11 for approximatley $2800 less. I am anxious to go ahead and "pull ther trigger" so I would appreciate any input. Thanks.