Yes, I think this is a bit like saying "Well of course I could buy a car from a car manufacturer, but I'm a bit of a geek so I prefer to make my own." There are people who love to do that and have the passion and time to do so and to maintain the thing themselves. But unless you really have a passion for web development as a hobby at least, if not a career, then I agree that we're in an age where using an off-the-shelf system is highly valuable and time saving, *and* still gives you plenty of flexibility and the option to "dig into the code" (CSS, PHP, Javascript, or HTML, depending) when you want to.
- Oshyan