The fact "a card case is for people who have cards." is illustrated with the story:1. If you have a job that makes it necessary for people to call you back, you should have business cards printed2. If you own your own business it looks more professional if you have business cards to hand out to potential clients3. Card cases protect your business cards4. It looks professional if you keep you business cards in a  card case5. You can have your initials ingraved into the lid of your card case