Depends on, sure there is some "efficient frontier" where it flips. Think about all the supermarket chains, handling millions of cash daily; in my region, thos

Depends on, sure there is some "efficient frontier" where it flips. Think about all the supermarket chains, handling millions of cash daily; in my region, those are relying heavily on outsourced cash recycling companies - why? Its more effort/cost if they would do this themself.