Tax-Free Storage Wars
longreads.com
longreads.com
https://www.npr.org/sections/money/2018/02/09/584555705/epis...
Entrepreneurs set up a very high-security art warehouse in Harlem (New York) with a main selling point that it enjoys a formal exemption from Federal import taxes on fine art. However, no such taxes exist in the U.S. The author believes that the tax exemption provides a kind of cachet for the warehouse even though there is no practical benefit, and that customers may not even realize that they don't get any financial benefit from storing artworks there.
Lies, damn lies, damn damn lies, and marketing.
So there is some possible use still. But largely it's a status symbol for the high security storage location.