Let me clarify what I said, the specific items sold in the bulk returns were items that did not normally have a blanket warranty. All of them are items with some limited warranty, like a year etc. and normally requiring a receipt for warranty service.
Sears is the same way with returns, BBQ's, lawn mowers, even tool chests, all get sold, but never a lifetime warranty item like a socket.
Returns will sometimes still have the "factory" warranty, but sometimes it can be a PITA to try and get warranty service, and generally varies between brands and policies.