In Finland this is sort of institutionalized and brick & mortar -ized. For example Helsinki has an official recycling center (kierrätyskeskus) AND some more-or-less private chains (UFF, FIDA). They all operate on the principle that people drop stuff off they no longer want, and without compensation - "donations" - that are checked, priced, and placed on a shelf or the display area floor. Complex items like home electronics can be tested and then tagged as such. It's a marvelous system for keeping perfectly serviceable goods in circulation, and it not incidentally provides donors the satisfaction of their stuff finding new homes.
It's not exactly a secret that in the Global North, you can get by pretty comfortably with the "leftovers" and "trashes" from other people and industry. There's so much waste on every level of very decent material.