Comment by benmanns

IMO the game is to get the highest credit score while spending the least on credit. That way if you e.g. need to acquire housing, a reliable vehicle, business loans, even employment or insurance, you will be able to and can get a good deal. Sure, paying nothing saves you money, but it also costs you the opportunity cost between what you could earn/save by utilizing credit vs waiting months to years to save up and pay cash.