MM makes some very good points. I used to use my projector in a B&O CINEMA mode all the time before larger tv screens become mainstream. Now, I have a 75 inch tv screen with a BeoSystem 4 with a projector as the second video output. You need a special Atlona splitter to make this work. I've found that now with a 75" tv that I never use my projector with a 100" screen. The tv is brighter and has a better picture. Also, there is no need to worry about keeping out light. I just don't miss the projector.
However, if your concern is keeping the tv presence small in the room, I can understand your desire to have a projector. There was a time when I had no tv in the room and just had a motorized screen that retracted to have a large piece of art on the wall. I liked the elegance of not having a tv being so prominent in the room.