rxmd
May contain traces of nut
I own several M lenses over $2000. They were all bought used.
If I sell them again today or in 5 years time, they'll still be worth $2000 or even more.
Do you know many hobbies were the items you purchase do not actually lose value ? Try golf, skiing, cars, .... 😉
I guess it's no secret that used premium items tend to keep their value well in general, as long as they don't get much wear.
From your list, cars are a prime example. Of course you can always crash your oldtimer, but then again you can also drop your lens.