Is this kind of Warp NPC unique to this server?

[Rhino_Man]

most of the servers I've been on have had some form of warp npc like the ones here. Some charge money for saving the map, some charge zeny for warps (lots of it) some charge nothing for either of them, some charge for both. Some have warps right to the bottom floors of most dungeons.

It all depends on what you want it to do. So it's not unique but the prices are.