I have a 80in Carada CW screen that I got off of craiglist for $25. I did an A/B comparison with my 120in HP screen with each covering around half. The Carada had better color and blacks to me.Plus, I want to prepare myself for brighter 4K projectors later on down the road. Since, I don't watch much 3D, I'll settle for a larger screen for just 2D.
The pictures are not great, and looks different in person of course. But its an example