Why do some discontinued Rolex models consistently trade above retail? Take the...

https://www.justluxe.com/community/the-discontinued-rolex-models-quietly-outperforming-the-market-920045628/

Why do some discontinued Rolex models consistently trade above retail? Take the Kermit 16610LV or the Pepsi 126710BLRO, both with strong collector demand despite no longer being made