Most of these conferences are pricing out the people who actually want to learn, and instead mostly just filling their seats with people who know it already.
I think the model of moving the conference through europe also ensures that there is a healthy competition between the user groups.
But there are other great conferences at a similar price point in the ruby world, for example Ruby Lugdunum: http://rulu.eu/ .
A tip for you, and maybe other German speakers here: "beamer" is one of those German words that seems like English, but it's not (like handy). In English, the word is "projector", whether it's analog or digital.
Thank you so much for that clarification.