Well... if that was up to me, I would've made a server with everything in it free, as in making all of the content in the server completely free. Just like that. I wouldn't be making a server to get money from it, I'd be doing it for the sake of making a server - gaining knowledge, giving players a fun place to be, having a large community etc. I'm just not after the money.
However, nothing in this world is free, sadly, and hosting a server can cost a lot of money. When I had my servers long ago (They were some of the best servers in Israel), I had a nice income from donations and all kinds of payments. However, all this money went straight to maintaining the server - I didn't see single penny from it.
That might sound stupid, giving up money like this, but that is the right thing for me.