ON TOPIC: Take cash, fella. Your job is getting people to pick you to do business with, not make it harder for them to do so.
Many people prefer not dealing in cash. CC is easier to carry/handle (ie no 3" thick wallet and loose change), they get rewards points, they can dispute the charge if there's a problem with the vendor or merchandise, CC statements can be downloaded into ledgers in some cases, etc. But it is clear this demographic prefers cash!
We will oblige!
I think thread is done. Let's stick a fork in it, mod. Thank you, everyone!