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> This way they'll make money after the limit takes effect. My assumption is that they are hoping the consumer will forget there's a hard limit to the amount they can save and always go with their "5% cash back card" when making purchases.

And that assumption is exactly what I'm saying isn't universally true. My entire point is there are customers who just rotate cards instead of still using it for lower cash back. Who do this for years. Without racking up any interest. Why do those customers' accounts get kept open?




What I was saying above is that I wouldn't be surprised if a high enough percentage of even the customers who "beat the system" so to speak for many years eventually slip up that it makes up for the rest.

If that's the case, and you can't predict who exactly that subset is going to be, you keep all of them around.




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