I remember the days before Wordpress. If you found a halfway decent CMS, they all had horrible, poorly documented upgrades - you'd have to basically reinstall it every time there was an update to ensure that you updated whatever the bug or exploit was being fixed. Wordpress's update feature is by far one of the premier reasons I like it. Before Wordpress, with other CMS products, you had no plugins, so everything was a custom hack. I looked at Drupal, but Drupal is so overcomplicated it takes a staff of developers to maintain it. Drupal developers and users love talking about their "taxonomy". I love the simplicity of Wordpress, the ease of plugins, and the separation of themes from the core. Everything else out there is junk in comparison - including Joomla and whatever else you can think of, they could all take a lesson from Wordpress. Another nice fact about Wordpress sites is that Google gives them an unofficial SEO boost.