It is not possible to buy used shipping containers directly from shipping lines. Shipping lines liquidate their used containers through B2B. The wholesalers buy the containers from the shipping lines who in turn, sell it to the sellers in the market. Consumers buy it from them and as a result, the prices usually double by the time it reaches the consumers. To avoid middlemen, as a consumer, the best way to buy is through shipped.com or ebay.com.