[KarlInOhio]

This is pretty simple. If the gas stations can make more money by going cash only and not paying the credit card fees, then they can go cash only. If they'll lose a lot of customers by making everyone go inside the station, pay, pump and then return to the station to get their change, then they'll keep the credit cards.

Now why is Congress having hearings about this at all? I don't see it anywhere in the Article I Section 8 powers given to Congress.

[RockinRight]

I believe Florida still has stations that give a cash/ATM and credit card price.

[outfield]

I think the Commerce Clause puts this under the purview of Congress. And part of the question here is whether or not Visa and MasterCard are colluding to set the fee — essentially, whether they are price-fixing. It is difficult to know if this is actually happening, because there is so little transparency. Hence the hearings. Could be very interesting.