Team Fortress 2 keys used to have a resale value a long way below what Valve actually sold them for. There was speculation that this was because a significant p

Team Fortress 2 keys used to have a resale value a long way below what Valve actually sold them for. There was speculation that this was because a significant proportion of all keys being bought were actually being paid for with stolen credit cards then flipped on quickly. Whether or not this was actually true I don't know: unfortunately, hardly anyone in journalism (gaming or otherwise) seemed to be interested in investigating this anomaly at all.