I dont understand the mindset of a photographer who already anticipates the sale of a camera at the time of purchase. I won’t be around when my gear is sold, and it won’t matter if at that stage it is valueless. I have already got my money’s worth of pleasure from it, and anticipate more to come.
By letting stuff go when it was time to let them go, I think I've gone much further than I would have otherwise. I did the same with hifi equipment, radios, books, computers, you name it. I've had occasional regrets, but in the case of my first-ever Apple Macintosh computer, I eventually found another just like my original. But where I sold the original for $900, it's replacement was sitting in a pile of someone's trash, so I got it for free. With that kind of cost basis, and with current market values being pretty modest unless I were willing to ship it to some distant location, I'm okay with it serving as a decorative object. But most of the time, if not for the eBay auction photos that I saved, I'd scarcely remember the departed items.
As of 2023, "the market" seems to value Leica M far more than I do, so I've turned my attention elsewhere.