It wouldn't come into play for Mr. Debt Free; it's not credit.
Factually and logistically it does take less time to swipe one card with only 1 exchange of paper from the cashier to you than it does to count out money, give it to the cashier, wait for it to be counted again then input the amount into the register for the drawer to open, change to be counted out, then handed to you and counted again. Then you have the added time factor of waiting while someone puts money away and if you've ever been behind me on the few times I use cash, I would fully well understand the exasperation. My money has to be in perfect order, all bills facing the same direction, no bends or folds, denoninations together in descending order. It would be a pain for ME to be behind me in line.
LOL.. I know I'm being a butthead here, but the fact is, plastic IS faster to use. Some of the replies inferred it was like charging and CC use and that was the message the commercial was putting out; that's why I made sure to point out the difference and why the thread turned that direction.