It's true that you build up a network of friends on a NA/JP server, but on the other hand to enjoy the game at its fullest - it is best to go to a server where you have the least amount of lag. I do however wonder if EU players are actually ''savage'' material when it comes to endgame content, I never really see or hear anything from eu server groups. On one hand I am glad most can use auto-translate, but on the other hand you can't expect to run Savage with that type of communication. Also to note that there was an option to have the free transfer to an EU server, I do wonder if they apply that additional server as free.