Quick rant time - we're putting together a fairly large site in Drupal at the moment which has a bunch of menus. 

Most Open Source CMS' (incl both Drupal and Joomla) allow you to setup blog and list displays of content - which really aide in keeping the number of menu items down, but sometimes an aesthetic will require you to build out many menus - which can be confusing and time-taking to manage.

This is a prime situation which exemplifies simple but important differences between CMS' - Joomla's menu management system is a bit quirky because of ItemIDs and theme association but its waaaaay simpler to manage menu items in Joomla than Drupal because of the listed-view approach on the admin side, which allows you to select multiple items, delete them or move them to another menu in a bunch and assign access permissions - all things that Drupal's stock menu module don't afford.

Again - simple but so important!  Okay, I'm off to delete 30-odd menu items individually on this Drupal site now :( ... 

Source: WhyJoomla.com [1]
Photo Source, 10ch [2]