I don't have a single piece of cast iron I couldn't get 2 or 3 times more for it right now than what I paid.
Yes, I buy the stuff to cook in, but that's not the only reason.
Everybody spends their own money the way they want. I know I do. And I don't have any problem with anybody else doing the same.
If you've only got $200 to spend and the choices are a nice hunting trip or a cast iron skillet, I'd more than likely pick the hunting trip, too.
Now, if I've got $400, or say even $600, well then it becomes a completely different equation.