Looking at today’s business models, As a Service (aaS) models are easy to spot. Once, we had cassette tapes and CDs. Today, we have online music subscriptions. Not only do you pay less with a music subscription service, you now have on-demand access to exponentially more content than you could afford if you had to buy each album individually. You are also no longer responsible for locally storing, organizing, and maintaining an enormous library of CDs.