For watching movies I'd take a short throw projector over any VR HMD for the foreseeable future. Plus even if I were single, I'd probably be planning on guests at some point.
1. You need to have a lot of control over the room lighting. If you can't block out all the light the image quality suffers a lot.
2. You need to have a clear wall or projector screen, which might mean giving up some useful space in your home.
3. The black levels are awful compared to OLED.
As for guests, other than the occasional movie nights, we usually play a board game or are making something as our activity.