The Drupal community has grown exponentially in the past few years, with an increasing number of companies using the Content Management Framework, extending it with improvements in usability and functionality, and then often times contributing those improvements back to the community for use in other websites.
Drupal is now a tried and true content management system, that is growing more secure and easier to use every day.
By using this open source tool, we keep our development costs to a minimum, and can afford to sell inexpensive websites to our customers.