BB has sales sometimes, but it's never cheap. You can sometimes find someone selling their old BB pills on ebay or a forum like this one, or breastnexus, or something similar. Some people have had success with other BO type pills, like UB (UltraBreast) manufactured by medplex. You can also buy BO generic. There's some contention as to the source of the bovine pills, that is, you want to make sure it's from a source that isn't potentially contaminated with mad cow disease, and I think that's why some people stick to BB despite the cost. BB also claims to include "pituitary gland substance" unlike UB and I'm not sure what that means exactly. If you do decide to go with UB or something similar, make sure to supplement with kelp or L-Tyrosine to keep your temperature up, as BB has kelp included in the pill formulation.