Centerfire cases cost more to produce.
But they are readily recycable in a way that most metal components are not. Even tin cans can't just be filled again and re-sold.
Then there is the fact that, in terms of light strikes or failure to ignite, I understand that the rate with rimfires is higher, if not high...
You cannot wake someone who is pretending to sleep. Stop pretending. Wake up.
Doubt: ...it's the only thing I'm sure of...
-Marsupials: Nature's idea of Concealed-Carry-