AO’s story at the start was pretty slow but it got better. If you’re doing the story on a new save file every week (or even month) though it would get really boring (But most games would as well). If you already know the story inside and out I can totally see how the story would get pretty boring unless you have the memory of a goldfish and will forget it in the next few months. The fleets and getting gear on the other hand are really repetitive when making a new save file. Anyways I honestly think that if you play the story only every few months the replayability isn’t actually terrible.