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Alice may be situated where she
can approach Bob directly to deal at spot price, in order to forego
the cost of using the machine, or she can choose to pass, and allow
Bob to suffer what she would perceive as a relative loss Because the
machine doesn't care about the price, it determines a local price as a
function of parameters like the balance of XMR in the wallet, the cash
in the fiat buffer, the total capacity of the bill recycler reservoir,
...