Just like cloud providers give you hardware as a service, developing your applications as Software as a Service gives you another level of benefit, expanding your applications beyond the standard services. By expanding your application to be a service instead of just software, you're giving yourself a huge advantage over any competition. Services are always growing and have infinite potential to keep customers. SaaS gives your customers the same advantage that the cloud gives to you, low initial cost and a reason to keep paying. Everything from business-level applications to the newest games are being transformed from standard single-person applications into services. Don't let your development time go to waste by developing something that will be out of date by the time it's released.