There has long been an assumption that Software as a Service (SaaS) companies will become profitable as they scale, so that as long as you are on track for rapid growth, the profits will come. This belief is now being called into question. SaaS companies have real costs and how those costs change with scale has become an open question for many companies. To be successful in today’s changing economic climate, SaaS companies need to understand the relationship between value, price, and costs and how these change with scale, as the author explains.