it takes a while to boot up 1,000 servers that are all networked together. then there is a slight chance it will crash the network if all done at the same time. they do not want to allow access to any with out this. they could bottle neck it and open a few at a time and allow players to start to fill them. this would guarantee full servers 60+ people per server but then it would be a huge land grab but good for pvp!