So, AR is harder than VR because of things like surface detection and occlusion. That being said, the problems with closed-headset VR are twofold: the price and

So, AR is harder than VR because of things like surface detection and occlusion. That being said, the problems with closed-headset VR are twofold: the price and the arid software landscape. A Vive Pro headset, the most advanced consumer-ready VR headset, costs $800, plus a few hundred $ more for each of the base stations and controllers. On top of that, you need a good PC to run any VR software. That's a lot of money to invest. And if you do, you're met with a bunch of weird experiments, a few weird experiments with some polish, and a handful of games that offer a truly novel experience in VR. But because the barrier to getting into VR is so high, it doesn't make financial sense for most companies to try to make software for the space. And because there are too few games, there isn't a good reason to buy a headset, so the whole ecosystem goes full ouroboros. So, I guess the thing that is missing is the price falling low enough that the VR ecosystem can become self-sustaining. Good VR systems totally exist; they just cost $4000 and you can't do anything with them, lol.