Drupal has a lot of problems. It's still much better than Joomla, IMO--Joomla has a lot of really deep architectural WTFs and I find it much harder to work with, both as a software developer and as an end user.
CCK and Views allow you to do fairly complex stuff within Drupal without writing code. There's definitely an upper bound on performance with such a method, but you can get stuff out the door pretty quickly. Joomla doesn't really have an equivalent, and adding new content types in Joomla isn't novice-friendly. (Also, Drupal's Taxonomy is way, way nicer than Joomla's arbitrary Categories/Sections stuff.)
CCK and Views allow you to do fairly complex stuff within Drupal without writing code. There's definitely an upper bound on performance with such a method, but you can get stuff out the door pretty quickly. Joomla doesn't really have an equivalent, and adding new content types in Joomla isn't novice-friendly. (Also, Drupal's Taxonomy is way, way nicer than Joomla's arbitrary Categories/Sections stuff.)