Probably by single serving bottles or cans at your local gas station mini mart or convenience store. Their prices are much higher than buying from your local grocer or bulk foods store.
That is vending machines for sure. You will pay $2.00 for a 12 ounce can of soda here. The cheapest way to get soda is your home postmix system. We pay about .12/glass for soda and let the customers serve themselves all they want.
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them