Pretty sure they make money by collecting credit card fees. You are essentially giving up points/rewards in exchange for an unlimited supply credit cards which, as you mentioned, has a valid use in certain situations.
This is just a visual representation of how big each category is in the US, not where it’s located geographically. Cow pastures are spread across the entire country but if we combined them into one big square this is how it would look.
Cheesey Gordita Crunch with the Doritos Locos taco inside!