Client: But why is it so expensive to host a website? I mean you could host Wordpress on a cheap like 10$/month webspace, right?

Inner me: Bitch, you have a fucked up Symfony 2.1 website that only runs on PHP 5.3 plus a Wordpress site, with a lot of updates not done, plus you have a huge traffic at peak times, like once a week
Me: Well you know, the services you are running require a lot of resources...