Most of it is from return auctions. Many store chains don’t restock returns as a policy due to liability and the shell games scammers play returning old/broken items as new. Instead, stores palletize returns en-masse and send it to a weekly commercial auction. I know quite a few resellers in that business, and enjoy patronizing them for both food and silly items like cleaning supplies. New tools don’t interest me much but I do know a guy specializing in that niche too.
And yes, I did say food. Grocers regularly end up stuck with full cartloads of food when someone’s EBT or other card doesn’t work or folks run out of cash, and they usually don’t restock.
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