I'm also in the market for a new TV. I have a 65 (living room) and a 55 (master bedroom); all Samsung. I was looking to buy one for the family room. I was debating all throughout Black Friday. I've done my research on Projectors too, that's why I held out. I can buy darker curtains for the family room and just use a projector. If I bought a project, it would be either the Epson or BenQ brands. However, I think I'm leaning towards another Samsung 75 inch MU8000.
Let us know if you went the projector route and how it's turning out for you. Pros and cons.