"Not sure about the logistics of a signed contract for each new merchant that uploads a product to the marketplace. We have a much higher volume there than folks like DAZ, etc." Lol! So does Sprint. Wanna buy a phone service plan without a contract? Anyone who engages in a business transaction involving expectations of performance and planned revenue generation must have a mutually agreed upon statement of business process and accountability- a contract. Otherwise it is an informal private agreement, and not subject to actual enforcement of regualtion on either party's part.