I am in the midst of reading Scott Steinberg’s book Make Change Work for You (don’t worry I’ll post the book review when I’ve finished!).
Steinberg discusses a company, TrainSignal (now part of PluralSight), that made the leap in early 2013 from selling product via DVD to solely offering streaming video.
Checkout Christina Desmarais article in Inc about how the switch went down.
If libraries are going to consider following TrainSignal they will need to thoroughly research the patron demand for the streaming service, make sure the streaming is of high quality, be prepared to whether the storm of transition, and frequently/clearly communicate with patrons.