$450M on a painting isn't a bad thing; it's just some money changing hands. $450M on a mansion, that's a lot of real value that could have gone elsewhere.https://twitter.com/DeanBaker13/status/933073306844004355 …
In some ways analogous to a Georgist land tax - you don't get inefficiencies from inflating the price of a fixed asset. Then again, people will now spend more trying to find/restore/steal/protect such art. Hard to escape incentives.
