OK, so they're scientifically valuable, historically valuable, perhaps emotionally or culturally valuable. That's plenty good enough reason to save them - I'm n

OK, so they're scientifically valuable, historically valuable, perhaps emotionally or culturally valuable. That's plenty good enough reason to save them - I'm not trying to argue they shouldn't have been saved. But I'm still not seeing that they have any current economic value. Which is fine, not everything needs to have economic value, I was just curious if there is some that I was missing.