In The Stanley Parable <Spoilers>I spent soooo much time wandering around the virtual museum in one of the endings. It was so cool, and I wanted more things like that. I'm totally down for VR museums. </Spoilers>

I realized awhile back that a lot of the best 'sculptures' nowadays are being made in 3D programs, and not in real life, nowadays. I'd love if someone could create a virtual museum software that includes exhibits of some of the great 3D models that have been included in various games, movies, etc.

Agreed. But I extend to the entire planet being the museum. So I'll restate as "VR time travel is the killer app"