Rolex noob here. I've been eyeing a Yachtmaster I for the longest time. Can someone tell me why it never appreciated as much as a 25 year old Submariner? Based on precious metals content alone, the Yachtmaster I seems like it should be worth more than a Sub. I know you can write a whole treatise on why Submariners are in high demand, but I'm just curious as to why the Yachtmaster never saw that level of popularity after it was discontinued?