To describe a microcosm of this line of thinking, let’s take Pokémon cards. Packs containing a (foil/holo) card weigh more. A sealed box of packs is theoretically a gold mine. But how do you establish that the presealed box wasn’t raided and resealed? A whole system of trusty discoverers and buyers play hand in hand.
Individual packs will always be looked at with doubt, since they’ve probably been weighed and sorted.
Individual packs will always be looked at with doubt, since they’ve probably been weighed and sorted.