I really like the whole vanilla feel, but vanilla isn't satisfying the normal crowd anymore. I think you should push to more modern standards and turn into a semi-vanilla server (pushing more heavy on the semi side). Another thing is that the player base is as big as it could be, meaning you should spend as much as you can with advertising. The server is quite old yes, that brings quite a bit of uniqueness, but it is just like a lot of other servers.