The point of an internship from the perspective of a company is to try and recruit good talent before it hits the open market. If you had the option to buy a trading card for $10 before it was even off the print line you would end with two scenarios. Either the card was a dud and you wasted $10. Or the card could be a holy grail and potentially make you thousands of dollars. And no one else even had the chance to see the card to tell if it was worth the money you spent.