So far Google, FaceBook, and now Apple have sunk huge sums of money into this space.
With each round dying out fast than the last.
I've said this a hundred times. The form factor is wrong. And there is no upcoming tech that can fix this.
Successful toys need to be casual. Something you can just grab and instantly start using. With the ultimate being the phone. Game consoles are close. But a VR/AR headset requires a lot of preparation before entering into the "space". In almost all cases the best experience is in a dedicated largish room.
So now you have to plan when and where you are going to use this thing. Instantly not a casual exercise.
Secondly the "experience" once inside the "space" is still very much a vomit wagon for a lot of users. Which means there is a large segment of the population that simply can't use the devices. Which then violates another problem. It's not social. You can or you can't play. So the potential of ubiquity is lost.
Cost. Yeah Apple made a huge mistake here. The price point was even outside of the range for Apple users. Seriously financing an obviously dead end device. Are you mad?
The killer suite of apps. Not just one app. You need a significant number of apps used for a multitude of things. Hopefully some of them stick with each user. But sadly I don't actually know anyone that talks about that killer app in Vision pro. Not one. And I know a lot of cashed up Apple fan boys that purchased one.
Unfortunately the form factor is the biggest down side. As long as you have to strap an isolation bell over your head it's not going to work. Apple tried with camera's and displays etc. But it didn't solve the problem. Once our eyeballs can be directly stimulated, Bypassing the need for rap around face hugging helmet then we might have something. ( Note this will be huge as this solves our aging eyes issues as well. ) Is this any time soon? Nope. The science, tech and social acceptance all need to happen first. I honestly don't expect this in the next 40 years. As this is such a huge science and technical leap. And once it's there it's price of entry needs to come down a lot.
I personally know several people that went all in on Apple vision Pro. When I say all in I mean all in. Like Mortgage the house all in. Making start ups that were going to be the leader is some completely irrelevant area of VR/AR. With most already closed down, No funding other than their own cash, no market, no actual product idea, nothing. At best I saw most of these guys play with AR and trying and do detection and attributing of things in their view. So popups, labels, data searching etc. Almost always they set it up so that these extra elements were dead centre of view. So you were basically a step away from a hospital visit. Which did happen in one notable case.
Will Apple help these guys out now that their investments into the space are worth ZIP and they are now jobless and deep in debt? Of course not. Should Apple be forced to help these early developer adaptors out? Absolutely they should. Apple will never admit it was a scam in the end.
In the end do not invest in VR/AR. Unless of course you are shorting the stock.