I think that industry is still too young. We don't yet know if it'll take off or just be a fad.
Indeed, the fact that the depth isn't immediately obvious is probably one of the best indications that it isn't a fad. Fads tend to be based on things that are shallow and ephemeral. The advent of synthetic space is anything but.
1.) legacy software rules, companies and government will be slow to adopt even though VR can save a lot of money
2.) Walking around wearing a VR headset looks kind of dumb
The fact that [uncertain thing] became a huge, lasting hit doesn't really give us information about [different uncertain thing], except the knowledge that the probability of being a hit is non-zero.