Yea, i hear you on size but it almost doubles 9mm capacity. It is only a matter of time before you see ccw 5.7 and bolt guns in 5.7.
I'm not saying it will be 22 cheap, but as demand grows and the big companies keep making it in America it will continue to improve and more available in bulk pricing
It has dropped significantly since the ruger 5.7 came out and American ammo makers got on board. What's your life worth?
No "good ammo" is plentiful right now