This is true, but killer bee is simply super pastel spider, no axanthic in the mix.
Prices vary from breeder to breeder, and if you want quality animals you'll have to pay for it. TOTALLY worth it though. Male or female makes no difference in temperament, ball pythons are ball pythons. Females get larger than males, 'bout the only difference I see in my collection. If you have other breeding plans then it might be beneficial to plan what morph is male and what is female according to that