I mean, really, really inexpensive. There is no marketing medium that is less expensive than email. Print, television, and telephone can range from a few dollars per touch to several thousands or even millions (think of those Super Bowl commercials). The price of an email can be as inexpensive as a penny or less. This means that organizations of any size save money over traditional mass marketing tools. For small organizations, email is a great equalizer. You don’t need a monstrous budget. To be successful with this medium, all you need is desire.