The breeder themselves did not breed the snake to ship it off. All those gravid females are pure imports collected form the African BP ranches. The reason breeders snatch up a wild caught gravid female BP is because Gd only knows what she bred with and what she'll throw. So for paying for a $200 gravid female a breeder could stand to make a lot of money from the unknown clutch. That's also why some breeders buy those females in bulk! They don't care if the female dies because the financial output isn't high as long as her clutch survives and could produces a new line of an old morph or a whole new unknown morph line.