Users on eBay have sold 12,000 Xbox One consoles since November 1, with 7,000 of those sales during launch weekend, November 22 - 24. There are currently 8,000 Xbox One listings on eBay, the site says. Generally these consoles sell for more than the retail price of $500 because that's how this resale thing works.
Microsoft sold 1 million Xbox Ones in the console's first 24 hours – and now we know at least 12,000 of those have already been recycled in the second-hand market.