[MangoDiesel]

This really speaks to this line in the top comment "It's your job—as someone who knows the consequences—to convince people of this."

Your company should really not be taking the "set it and forget it" approach to building web-based applications. It is important to educate the client on the importance of a proactive support/maintenance plan.

As a digital agency building mid-market websites/ applications, we have also found that selling clients on support/maintenance has helped increase client loyalty as well when they want to take on new projects. If you build a site and then disappear the chance they decide to use a different firm next time increases greatly.