Come on down to earth and smell the Roses. The -$999'ers are a great value, but they are far below the Epson in real contrast. With the others, you will have to increase/darken the screen perceptibly to begin to hope for some parity in visual quality, contrast-wise.
I'm thinking the difference between 35K:1 and 4K:1 contrast will convince you hedging on the image quality of a huge display makes no sense if the cost is truly do-able.
I know a Wholesale Vendor who has incredible deals on Epson 8100-9100-9500 Pkgs w/xtra Bulb & Mount inclu. PM me..... such links are verboten, leastwise on this Forum.
Use to was......there was no choice in the matter, the DIY Screen had to help make the PJ look a lot better than it really was. Hey....it still can and does at those levels. That's always been the most cool thing.....getting crazy value for your money/efforts. But with the exceptional and affordable 1080p PJs, it's now become a case of making them more versatile, as well as augmenting the higher native Contrasts so as to make extreme use of Contrast enhancing features (Auto Apertures and Black Stretching) much less necessary, and by doing so help retain far more shadow detail and off-the-screen brightness.
You can't make a Silk Purse from a Sow's ear, but you can improve the image beyond what it would/could be otherwise by choosing the right match-up between PJ/Screen. It's so obvious many don't even consider such....thinking one or the other can do it all. PJs are coming closer to that goal, as have DIY Screens. IMHO....the Epsons and Pannys of the world today combined with great Screen apps is about as close to perfection as we can hope to achieve at such low buy-in levels.
Everything else above them is just Gravy, and below them is still "All Good" ....that can always look forward to even more future improvement.