I think in practice AR is the bigger use, e.g. the Louvre lets you rent one of these (or maybe you've bought one and the Louvre gives you an app for it) and it shows you where to walk to go see the painting of the guy made of vegetables or whatever. Like an audio tour but visual and interactive.
I imagine one museum actually making it quality, while the rest would just straight up suck. Suckiness in AR/VR I imagine is way worse than a bad UI on your phone.
