https://appleinsider.com/articles/24/12/08/analysis-apple-vision-pro-sells-well-but-needs-more-content-faster

The Apple Vision Pro is often referred to as a "flop" in media reports, but by the end of 2024, it will have sold around 500,000 units.

That's a lot less than some others, and probably not where Apple would like it to be, but there are some people who bought it.

https://www.tomshardware.com/virtual-reality/valves-next-gen-deckard-vr-headset-reportedly-enters-mass-production-company-allegedly-plans-to-ship-up-to-600k-units-annually-upcoming-steam-frame-could-launch-before-the-end-of-the-year

Upload VR reports that the Steam Deck has sold around 5 million units so far, while Meta's popular Quest 2 VR headset shipped 20 million units.