Do they take credit cards?

There are multiple vendors. It depends on the vendor. Most do not.

Actually as of August 2019, they do now. In the shared building there is a main booth up front, run by the owners wife. They will run credit or debit cards for you, for (i think he said) 30 cent surcharge. For any of the other vendors. The nonshared building has a credit card swipe reader as well.

Never tried to use it. No

No