I never said they work for me. I've never hunted with anything but a round ball in muzzleloaders. My experience with them is seeing my friends using them.
As for what they sell here. They don't sell them, because that's all they can sell. It's what the hunters want and ask for. I've seen other conicals on the shelves collecting dust forever.
Yes, a Thor is a better bullet, but they don't fit consistently and he runs out of them too often. Guys here don't want to mess with that. They want to go in the shop, buy PB's, and go hunt.