Neither do collectible stamps, yet people buy them regularly. The most expensive one costing $200K, with the face value of 15 cents.
"On May 22, 2010, the yellow stamp was auctioned once again by David Feldman in Geneva, Switzerland. It sold "for at least the $2.3 million price [that] it set a record for in 1996"." https://en.wikipedia.org/wiki/Treskilling_Yellow
Neither do collectible stamps, yet people buy them regularly. The most expensive one costing $200K, with the face value of 15 cents.