The biggest barrier to adoption is of course the price. To pay $3,500+ I'd better be damn sure I will use it every day, and even though I did the 30 min demo I still have no idea if it would be tolerable for longer periods.

I've said before and I'll say it again, Apple/Meta need to have rental stands in major airports so I can rent a Vision Pro or Meta Quest for my cross-country flights. That would be a huge way to "try before you buy" !