players are not going to lose interest if this is the only spammable path to Sands of Time.

and you want the players to lose interest. actually what you really want is to disperse player interest to different things.

lower Myth and Soldiery so you send some players back to Dungeons/Roulette.

lower Allied Seals here and INCREASE them for Daily Hunt Bills so you take players away from Elite Mark hunting and send them to do Daily Mark hunting.

sell Sands of Time for Wolf Marks and send a bunch of people to Frontlines. put Blood-spattered Mark Log in Treasure chests.

you want lots of people doing lots of different things, not everyone doing 1 thing.