Abstract: A method of providing a buying incentive to a customer for the purchasing of at least one item of value, the method comprising the steps of: (a) advertising to a customer the option of buying at least one item in a series of the items of value, with predetermined special members of the series being able to be purchased for a special price, the special members being unknown to the user; (b) providing a user with the option to precommit to buying at least one of the items of value; (c) utilizing the series, including any predetermined special members having a special price, to determine the total cost to the customer of the purchase; and (d) fulfilling the purchasing requirements of the purchase.