Those middle models add other features that the base models don't have. For instance; eshift, a CMS, THX modes for better ootb color, fine pixel convergence error system, more savable lens memories, gloss finish chassis, motorized lens cover, Xenon lamp modes, a cinema filter, a second iris at the lamp, auto-calibration software, and most importantly the middle models have higher contrast and get the top 20% (and the flagship gets the top 2% iirc) of manufactured parts so you're basically guaranteed better lens samples, better D-ILA panels, ect for a better overall product. A lot of what I've mentioned is software based and is something they just don't give you on the base model to entice you to upgrade to the higher end models, but by and large, image quality can be very similar albeit less overall contrast within the image on the base model compared to the higher end models JVC offers. The base model and entry eshift model offer consumers some of the best 2D image quality out there at a very attractive price. For a competitive image from a DLP projector expect to pay almost double the price if not more.
Edited by Seegs108 - 12/23/13 at 5:47pm