Quote Originally Posted by JamieRose View Post
What's the point of having separate data centers within regions? It just means I have to move servers to play with my friend on Siren but that means I could no longer play with my friend on Coeurl.
Technical reasons. In addition to all the world servers each datacenter also includes instance servers that handle all the dungeons and other instanced content that potentially involves people from multiple worlds. There are limits to how much load the instance servers can handle, so they try to keep the datacenter populations at a reasonable size to avoid problems - at some earlier expansion releases the instance servers got overloaded and much instability and complaining ensued.