It was also a bummer because I was buying more 20 gauge shells and some. I suppose I should've mentioned that all the cards in the merchant's inventory caught my eye. I can purchase everything else from the merchant, including cards that i don't already own, with no problems. I have not seen this issue anywhere else, it only occurs with the merchant at the outpost. It seems to only occur if you try to purchase a playing card that you already have in your inventory.
