That's nonsense. Just look at WoW. They can release one major patch after another with countless new content, events, new maps, gameplay, and so on. Players then consume what they want, and especially how much of it they want, without time pressure, without stress, and without having to do nothing for months. WoW is also an old game and costs less than Final Fantasy, since you don't have to pay for extra storage space with real money every month.