I have been always wondering how some guys sell this things for half the price ? Is this stolen, or they just need quick money like desperate to get cash and this is the last resort? Still don't get it at all. Not accusing anyone of anything illegal , but there are probably other reasons and ways to make money doing this, are they?
A lot of people live in countries where they can't get Amazon items shipped, and might have obtained these gift cards for some freelancing work. They would have no use for these gift cards, and might be willing to sell it for a low price.