Making the leap in to Drupal can be intimidating. Even when moving from another CMS like Wordpress, it will quickly become apparent that Drupal is a whole other beast.
Unlike the other CMS systems on the market, Drupal strives to be able to handle any kind of website. While Wordpress typically caters almost exclusively to blog and news sites, and Joomla!, Magento, and Ruby on Rails all cater to eCommerce and business sites, Drupal has something that none of them have: true flexibility.