Abstract: The invention provides a system for pricing multiplex assay products that have a manufacturing cost that is substantially the same over a wide range of multiplex levels. Typically, manufacturing costs of such a product increase only linearly with exponential increases in multiplex levels. The pricing system and method of the invention permits a vendor to access a larger market by charging lower prices to customers requiring only low amounts of data from a multiplex assay product or data delivered over time or conditioned on results or interpretation of earlier purchased data points.