Ok heres my take on all of this. New morphs usually involve the males priced much higher relative to the females than morphs that have been around for a while. The reason for this is because when a new morph is proven and for sale, the breeder(s) who have that morph are trying to prevent others from producing huge quantities of the new morph so that the market doesnt flood with them quickly. Letting females go gives them more time to keep producing more of their own before anyone else can because it will take longer for those females to grow to breeding size while the original producer can have a couple more productive seasons. If males are let go, they can produce many of the new morph and allow other breeders to compete with the original breeder on prices etc earlier. I hope this makes sense to someone. Its just what I can logically piece together I guess