I can only reiterate that this article was too short.  I actually felt disappointed when I reached the end.  A smooth running SQL Server is akin to a basic utility; one doesn't really think about water, electricity or gas until one must do without one of them.  Given the processes and productivity that depend on a reliable store of data the SQL DBA should be something that no company is without either on staff or on retainer with a responsibility for maintaining current SQL server patches.  It may be an expensive position but the data unavailability alternative is much more expensive in the long run.