Share your insights or perspective on the financial matter presented in the input.

Will a credit card issuer cancel an account if it never incurs interest?
I would think it extremely unlikely that an issuer would cancel your card for having an ADB of approximately zero. The issuer charges the vendor that accepts a card a percentage of the transaction (usually up to ~3%, AMEX is generally higher) - so they are making money even if you carry no balance on your card (the specific language for various vendor-side (acceptor) credit card agreements boils down to "we are essentially giving you, the vendor, a short-term loan and you will pay us for it). This why you see credit-card minimum purchase amounts at places like hot-dog stands - they're getting nailed on the percentage.  This is also why, when given the choice between "Debit or Credit" for a particular card, I choose where to put the hit on the company I like less - the retailer or the bank.