We use dynamic menus in our website because our menus contain a lot of content that is listed out explicitly. The technology showcase menu is populated from our database, which saves us a lot of time in maintaining our website.
Each section of the technology showcase is automatically represented within the menu, so when we add a new technology to showcase, it gets added to the menu automatically. Likewise, if we ever remove a technology, it would automatically be removed from the menu.
Additionally, the image information for the menu is kept in the database and is also handled dynamically, so if there is image information for the menu item, the related image displays. If there isn't, the menu programming removes the reference from the final website page without any input from us.