Have you ever tried or have RP servers in minecraft?

Personally, I've never played on any RP servers, although I wanted (and still want to) create one. I've always liked roleplay, furthermore the various plugins and mods for Minecraft are enough to guarantee potential players a lot of entertainment and a non-linear, rich storyline.
I agree with Alexander VII, making a server like this would indeed take a lot of time and effort, but I'm sure it would pay off in the long run, as such servers are rather rare to find, and they are definitely a lot of fun.