Fortunately, costs are easier to estimate, and those for displaying a painting derive largely from its market value. Consider “The Wedding Dance,” a 16th-century work by the Flemish painter Pieter Bruegel the Elder. Detroit museum visitors have enjoyed this painting since 1930. How much would it cost to preserve that privilege for future generations?
A tidy sum, as it turns out. According to Christie’s, this canvas alone could fetch up to $200 million. Once interest rates return to normal levels — say, 6 percent — the forgone interest on that amount would be approximately $12 million a year.
If we assume that the museum would be open 2,000 hours a year, and ignore the cost of gallery space and other indirect expenses, the cost of keeping the painting on display would be more than $6,000 an hour. Assuming that an average of five people would view it per hour, all year long, it would still cost more than $1,200 an hour to provide the experience for each visitor.
That is from Robert H. Frank.