Home theaters are expensive! They also take up a lot of space. If you rent, forget it. In time, VR will be hugely more popular than home theater. If not, Apple would have released a TV or a projector. Also I guarantee virtual group viewings will occur. Virtual hookups between teens will occur, and who knows maybe they will go to a real movie in a real theater.
Yes I do think people out in the real world wearing headsets will perhaps even be attracted to each other.
Also, if you are sitting watching something passively you do not need VR. I'm sure for just watching movies the same micro-OLED panels could be fitted into super thin glasses. Also, glasses or goggles, you can have real audio to go with your virtual screen. I've experienced it, works fantastically well.
But the main thing is VR can put people who are not in the same room into the same space. Fans of a movie from around the world can have virtual screenings in the same theater. You could mute other people or you could choose to hear the "audience commentary" there's a ton of potential here that is not at all isolating, it is connecting.