Why do some discontinued Rolex models sell for more than their original retail...

https://charlie-wiki.win/index.php/Kermit_16610LV_Aluminum_Bezel_vs_Ceramic:_Why_Collectors_Care

Why do some discontinued Rolex models sell for more than their original retail price? Take the Hulk 116610LV, for example. Its unique green dial and bezel combo caught collectors’ eyes before it vanished from production