A method and system for reserving future purchases of goods or services. Plural electronic options include electronic option terms established by one or more suppliers who can supply the goods or services. The option terms vary greatly among the individual suppliers and no two suppliers may use the same option terms. Use of variable option terms provides significant flexibility for use of the electronic options by suppliers. The method and system may also allow a purchaser to risk a small amount of money to use an electronic option to reserve a price to purchase or not purchase desired goods or services that may or may not ever exist at a desired future time.