I've been thinking as well, BHP vs woma, and found BHP's are more pricey due to their sexual maturity taking a bit longer and low offspring numbers. Combine that with not being readily available at pet shops and you've got your answer as to why the price is higher than a woma.
That being said, we have some premiere BHP breeders who are very good at what they do, produce some incredible specimens, and quite frankly are easy to contact and inquire about their snakes and care. IMHO we get what we pay for.
I've also learned their husbandry is a little different and BHP's are less likely to nibble on you like the womas do LOL
Interesting, so how does the husbandry differ between the two?