What is SaaS? A.K.A "The Magical Cloud"
And no, it is isn't sass, but it might as well be!
Software as a service products are quickly becoming the norm. While this might be an awesome direction for some large enterprise cases, in most situations it is nothing more than a marketing ploy that takes the code out of your hands with the premise that you don't have to worry about installing, maintaining, or troubleshooting anything. Someone has to host the application, why not let it be you? If you can install Wordpress, then you can install and host my applications on your own server. No gimmicks, no monthly price tag, just configure, deploy and install! Boom...you're done!