There is no competition for it yet, and the competition that will come out (Samsung/Google's collaboration, Meta's next attempt at Quest Pro, etc) will alike Android 1.0: planting a flag, but the actual experience will be measurably worse.
It's a fully-integrated standalone MR headset with access to the wider Apple ecosystem, the highest-quality components of 2022 (yeah, it's shipping late, but it's still better than the competition), and it's backed by Apple, which will end up redefining the conversation around XR as a whole.
Even as a portable home cinema I'd consider it, especially in my small European apartment :-) The price is high because it's expensive to make (~1700 USD [0]), they need to make the money back on R&D, they're supply-constrained [1], and likely because - yes - they want to limit the mass market's exposure to 1.0. Still, as an enthusiast, I've been waiting for this for many years; I'm ready to try it out for myself.
[0]: https://www.uploadvr.com/meta-quest-3-apple-vision-pro-produ...
[1]: https://www.uploadvr.com/apple-vision-pro-production-severel...