The article establishes and uses a brand new metric: SAP's technology must be interesting for develpers because it costs exorbitant amount of money to hire any

The article establishes and uses a brand new metric: SAP's technology must be interesting for develpers because it costs exorbitant amount of money to hire anybody to work on it. SAP is interesting for investors because it pulls in massive 10% profit margin. SAP's services are interesting for customers because it has high barriers to deploy, maintain and replace. SAP is interesting By comparison, Facebook-like projects must be boring for developers because they flock to work on them, even if for free or `ramen-profitable' for year or two. Facebook is boring for investors because it manages mere 25% profit margin. Facebook is boring for users because barriers to entry and exit are essentially non-existent. What kind of metrics is that?