The monthly hosting fee includes high-speed hosting, support, maintenance, and continued use of all the plugins and other software it takes to run the site. Some of this has to be licensed on an ongoing basis, for example, we use a custom theme ($2500+ initial cost to develop) and plugins like Gravity Forms ($259/year), a landing page builder ($199/mo), and email newsletter software ($29-49/mo).  You also get to use our custom plugins like the mobile friendly martial arts schedule as well as any new plugins and features as they become available.