I'm looking into getting my first normal ball python as a pet. I'm just curious...what should I be expecting to pay for one?

The local chain pet stores (PetCo, PetSmart, etc.) are all selling baby ball pythons for $80. There's another store called Savanna Exotics, an independent store owned by a friend of a friend, selling babies for $40. I was a little suspicious of such a huge drop in price, but the owner said they just "get a better deal" from the breeders. Your thoughts?