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

https://www.play-bookmarks.win/some-discontinued-rolex-models-don-t-just-hold-value-they-trade-above-retail-1

Why do some discontinued Rolex models sell for more than their original price? Take the Kermit 16610LV and the Hulk 116610LV. Both stopped production years ago but keep climbing in value thanks to distinctive looks and limited availability