actually no the game could very well be FREE once you understand the methods behind its gameplay and servers then you realize it could be free.
basically it uses a system similar to guild wars and joint ops, while they both require dedicated servers, you are not interacting on the same level as a normal MMO, for instance in one section/map in FFX1 you might have hundreds, even a thousand people, with Huxley there are several severs at 5000 each, similar to guild wars which at split into two distinctive safe zones, outside of these safe zones it a mostly seemless world, however the actual FFS fighting takes place in "battle zones" these battle zones hold a maximum of 128 players each, and can actually be supported by much smaller servers similar to joint ops. thus the real "interaction" in terms of fighting only takes place in specialized zones so a faster larger server is not needed.
so again it may very well be free however in exchange you arent fighting 5000 people at one time.