http://forum.naruto.oasgames.com/en/forum.php?mod=viewthread&tid=17446&highlight=power

see this post and focus on their respective servers, you will see why they keep opening new servers. if you can't understand then ill say it anyway, new server = chance that a new player will over spend and pay to win players in that server and be #1, in a p2w game you don't join an active server with cashers like you in it, chances are you will get into a cash vs cash with them and because they had a huge head start vs you you won't be able to catch up even with cash since they cash too. solution? open a new server for people who want to be #1, with money that is.

oh btw, #1 priority for opening a new server = income, players stuffs and gaming experience comes in #2. this is business and income comes first and is top priority.