@orgrum dijo en Why will pets cost real money?:
@dabba87 world of Warcraft regularly comes out with free patches that are more substantial than this entire game.
But you pay for the game every month and, still, there is "content" (cosmetics) only available if you pay more such as mounts. And well, is not a pay-to-win cause its an entirely optional feature, but the pets you can buy in WoW are usually the strongest for the minigame of the pet battles and some of them gives you a big advantage in the "pvp" fights, while downgrading the difficulty of the pve hard battles to a walk for the park (at least at the start of Legion, dont know if the "meta" of that changed).
If the pet service en SoT comes in just a similar way of the WoW's one (pets free for all and pets only for real money) could be the perfect formula for all, for example "you want a parrot but dont have money? ok, all yours, but if you want a macaw or a monkey, then you have to pay".