Compared to the ongoing expense for interventional methods, the Creighton Model is far less expensive.  Considering the quality of service received, the class fee is low.  Courses in weight loss, exercise, and other popular health-related classes are often more expensive.  Furthermore, the class fee for FertilityCare education is a one-time investment for information which can be used for a lifetime.  Users of interventional methods pay heavily for their family planning.  Not only is there ongoing cost year after year for the various chemicals and devices themselves, there are related clinic expenses.  Add to this the extra medical expense related to treating the common side effects associated with every interventional method.  These costs may be masked in the form of health insurance, but they are very real.  More than dollars, you pay with your health!  Over the couple's 20-30 fertile years, interventional family planning turns into a major investment compared to the initial expense for FertilityCare education.