nostr:npub1wer2566hh495xynqeknytn0gvhr9uaeckydk27q3ew3q2ptz39gqgmd9rl 
in very small letters at the bottom they explain it can contain exhibit items and repackaged items and that it can contain duplicates.

a Reddit (R) user explained that they had worked there and the mystery boxes were just 7 year old trash they could not move, like old chargers for devices you don't own, iPad covers, games for consoles you don't have etc.