As someone who resells stuff, "regular people" think everyone else's hobby/projects are crazy and a waste of money if they're not into it.
I've bought moldy items, paid for "garbage" out of a dumpster a few times, bought old CRT tubes, and use old postage.
If there's demand and a decent price I try and save it, it's better than the landfill.
I don't take it personally, everyone thinks someone else's hobby is weird and most of the stuff I deal in people look at me like I'm crazy buying it to save it from the dumpster.