Cause some people have different needs? Personally, I like to have to control of my own comment system, as well as a user login setup and a bunch of other thin

Cause some people have different needs? Personally, I like to have to control of my own comment system, as well as a user login setup and a bunch of other things that can't be done in plain HTML and CSS. A static site is good too (and for many people it'll work fine), but a CMS built site is also the way to go for many other people. It's all about what they want from a site or blog really.