To anyone who has a problem with $15 a month, allow me to introduce to you an option: Don't play.
This is a market. There is a supply of vanilla and a demand of vanilla. The market will decide the appropriate cost of this business transaction. YOU my friend are apart of that market, you can choose to NOT pay the current market rate for access to vanilla servers. That is the power you have as a participant in the economy we know and love.
See? Isn't that empowering? You have power my friend. You don't have to pay what they're asking for if you don't believe it is worth it.
Farewell