> It costs a few hundred million to maintain all those banks and vaults. There are ~8000 banks in the US alone, around 15K around the world. According to your

> It costs a few hundred million to maintain all those banks and vaults. There are ~8000 banks in the US alone, around 15K around the world. According to your made up number, it costs $6K/year to run a bank. That's not even remotely close. That would pay maybe a month of the desk clerk's salary + overhead.