Art = Tax Haven. Long time ago in my teens I worked in art outside of NYC and my friend's whole business was a Art Moving Company. Art isn't about art but to a very small number of people. I can't tell you how many times people would say that they don't even like the art they own.

Art is stored away where no one is able to see it, and all for tax havens. You can put your art into storage where the art sits and the owner doesn't have to pay taxes on their purchases.

2013 - https://www.economist.com/news/briefing/21590353-ever-more-w...

Same reason why the number one US Currency note in circulation is the $100 bill. In 2012 77% of all US currency was $100 bills! Can't tax cash hidden away. https://qz.com/29561/why-the-share-of-100-bills-in-circulati...