Tangentially related: Some times your relatives don’t even have to still be in possession of the item any longer to inflate the price and get offended. My mom goes on and on about how much some LP she had when she was 15 would be worth if grandma hadn’t of let it mold in the garage. I looked the album up and if she had a first pressing in mint condition it would be worth a bajillion dollars, but she most certainly played the shit out of a beat up copy of a 14th pressing that isn’t worth shit. Likewise, eBay fucks with their sense of worth, too. My parents will mention something they have being worth a lot of money and I’ll ask how they know only to be hit with “we saw that someone had one of these that went for several thousand.” And of course, looking deeper into unravels the entire plot of why that very not really rare thing sold for an unusually high price 10 years ago during a minor surge in popularity of that thing due to a new media reboot.