I get that. They would make more ultimately if they had more available, 15 is 15 once gone = 0 income. If they added more, or more of the lower ones, same thing, windrunners, dragons, bears.... still would add up to more income for them, right? I don't think 10 people are saving 4billion coins, if they are not fairly sure of getting one. And 15 is on the 5 realm servers, the others have less i assume? Do the math, if they had even 50 available, 50 x 4B is more for them, and if people knew they added a few more, they might scramble to get them.