A person with an antique to sell can entrust a certain online brokerage company to sell it online. Since the Internet company will only give the seller 75% of the antique' s fair market value regardless of what the antique sells for, a person trying to get the most money for his antique should try to sell the antique himself. The argument depends on the assumption that ['a person selling an antique on his own can typically sell it for more than 75% of its fair market value', 'at least 25% of the buyers in the antique market prefer to shop online for antiques', "if the brokerage company gave the seller more than 75% of the antique's fair market value, it would go out of business.", 'the cost to the person selling an antique on his own does not exceed the cost incurred by the brokerage company if it were to sell the antique']