I have two males and one female BP. I plan on breeding someday when my female is big enough, so that's why I'm glad I have her.
Also, it sounds kind of harsh and money-minded, but say you have to sell your snakes in the future. Or something happens to you, and someone close to you has to disperse of them. Females are always in demand, even normals; check out what big normal females are going for. While many times adult males are harder to sell especially if they're normals.
But if you need a snake for a pet, I would highly suggest getting a male. They are not as "desirable" for the big breeders, and they need somewhere to be cared for and loved.