Why use Drupal?

The biggest asset to using Drupal is not as much the software as it is the HUGE community behind Drupal. There are thousands of developers working on Drupal everyday constantly making the system better and more secure. There are over 1800 contributed modules that you can use to extend your site.

By using Drupal you start off with a number of features in your website right out of the box. Your website will have the ability to allow anyone with a login and appropriate permission to modify the content on your site.

Also, by having your website or web application built with Drupal you avoid vendor lock. You do not have to stay with a vendor just because the vendor wrote all the code and are the only ones familiar with the code. With there being such a huge community behind Drupal, it is relatively easy to find other developers to work on and maintain your Drupal website if the client-vendor relationship diminishes.