Good question, here are some good reasons:

  1. 20% 0f the top 1 Million websites use WordPress. Out of hundreds of technologies, WordPress is the most used CMS. It's just that good! (http://trends.builtwith.com/cms/WordPress)
  2. It's easy to use. Updating or creating pages and posts is about as simple as sending an email. That means you don't have to pay us to make little updates (unless you want to). Uploading content like pictures and videos is also a breeze. We also offer a slick drag-and-drop editor for more advanced layouts. Still no coding required!
  3. WordPress is Free. It's open source, which means we don't have to pass on proprietary fees to you. This doesn't happen every day, but you better believe it's happening here; you're getting the best for free.
  4. Large, supportive online community. 10 million+ friendly users and developers means that when technical difficulties arise, the solution has usually already been found, and is easily available. We just have to Google for it. Talk about saving time.

There's more, but are you starting to see a pattern here? In general, WordPress is quick and simple to use, which saves time and resources. And it's not because it's some magic bullet either, but rather a continually advancing web technology that's raising the bar for what you should expect in a website.