Here is a video of Joshua Bell ( https://en.wikipedia.org/wiki/Joshua_Bell ) playing a 3.5 million dollar violin in the subway for 45 minutes and making $32: https://www.youtube.com/watch?v=hnOPu0_YWhw
Since then their price has rocketed just like every other tangible which has become a hotly contested investment asset.
It's sad because it makes these things less and less likely to get played and more likely to end up in a vault.
Good to see at least a handful of them in use out there.