> 2. Charge more for the credit card paying customers, and they can avoid this extra payment by paying with cash. Things may have changed in intervening years

> 2. Charge more for the credit card paying customers, and they can avoid this extra payment by paying with cash. Things may have changed in intervening years but about 20 years ago I owned some quick serve restaurant franchises, and the credit card companies banned charging a fee to customers for use of credit cards - there was essentially a most favoured nations clause in the agreement. If you were caught doing this they would terminate your service permanently.