I agree (for quest 2 being the most interesting gadget in this space), quest 2 sold 10s of millions of devices and arguably came closest to making VR mainstream although they have much more ground to cover. Would be interesting to see the sales figures for their upcoming quest 3 , if it can sell as much or more units than quest 2 , I think there is a chance all this investment would be worth it. Ofcourse a cheaper consumer apple vision headset could easily come in and eat metas lunch.
Edit: copies-> devices