Oh how you understate that.
I got the VirtualIO i-Glasses a quarter-century ago. They were pretty light, small, optionally transparent, responsive to movement, and decent resolution.
What killed the VR/AR market of the time was lack of apps/content: beyond a couple decent games and cheesy demos, nobody could even hope to match the public vision of utterly immersive high res promises depicted in Lawnmower Man, Disclosure, and other VR fantasies.
So the market stagnated. Display tech went nowhere. VR/AR vanished.
Then came Google Glass.
OMGWTFBBQ that was a disappointment. Nearly as obtrusive as i-Glasses two decades past, and much less capable (save for the public-terrifying POV camera).
Occulus has been making good progress, improving resolution and responsiveness. Still a brick strapped to your face.
The hope: I've seen other hopeful tech stumble & stagnate, suddenly burst forth and take over the world (ex.: smartphones). Maybe - MAYBE - Apple has, by sheer force of will and mountains of cash, solved the VR/AR problem and turned bleeding-edge tech into commodity-level production. They did it with smartphones, tablets, watches, and earphones. Here's hoping they can do it again with AR.