I don't think immersiveness is necessarily a desirable property in entertainment. Movies, for instance, seem to be less immersive when they're more realistic (the Hobbit movie, for instance). There is something eerie about daytime soaps that arises partly out of their higher framerate. McLuhan did say something to the effect of movies being a "cool" media, meaning you could be absorbed into them. This characteristic seems to be inverse to higher detail. If I were to make a bald-faced guess, I would mumble something about higher sensory refinement taking processing away from appreciating the other aspects of the art. I don't think it's impossible that the fidelity we have today for film is essentially perfect as far as our perception and enjoyment goes--that is, after all, the case for music. This might sound like a controversial opinion here, amongst people who have inherent appreciation for the technical, but amongst our families I bet it will sound more plausible.
Anyway, thanks.
That said, I don't know what percentage of people will want to become fully immersed in a computer world. It can be disorientating when you put on the headset and the real world gets replaced by a computer generated one. I think the majority of the world probably won't jump on board until convincing augmented reality becomes possible. I kind of see VR as a building block for AR since they share a lot of the same problems.