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...
When the right to effective self-defence is denied, that right to self-defence which remains is essentially symbolic.
Freedom: Please enjoy responsibly.
Any idea that relies on murder for its survival in intrinsically weak.