I have been buying packs online for Pokemon cards. When you buy a pack you get a random card that could be worth either less, equal, or more of what you paid. Once the card has been revealed you can either hold the card in your PSA vault, ship the card or sell it back with the instant buyback option. I have been using the instant buyback option to buy more packs. Some have been for a loss and some have made money. Would it be considered gambling income and losses or capital income and losses?