That sounds good in principle, but isn't always practical. Of course, one has to purchase the projector. On top of that, I would have to take down the paneling in the room where I watch TV to create a surface to project on. So your solution would cost thousands of dollars. On the other hand, watching on Daydream costs me nothing. Google sent me the Daydream for free because I bought a Pixel XL during the promotional period.