Yeah that's certainly a good one, I am still wary of VR, due to how close it is to your eyes.
I am more hopeful about AR though because you are not locked into a virtual world and that extremely close screen to your eyes, it's basically like see through glasses with computer, hence I am guessing it might be better for your eyes than pure VR?
Cost is going to be an issue for a good while though, and I still don't think they will ever replace or be as big as phones, as some believe it could be, the portability is just unbeatable with smartphones (flip phones making that aspect even better), although maybe AR can compete with computers more?
I'm personally skeptical but a very interesting and futuristic sci-fi tech for sure.