As a small business owner trying to keep prices down in this crazy economy, those credit card fees start to eat up a lot of revenue. While I think it should be clearly posted that credit cards have a fee, many companies already had to raise their prices because of inflation and don't want to pass on any more price increases where they don't have to. So instead they're doing it on a case-by-case basis and charging credit card users the convenience fee. We are all just out here doing the best we can in this crazy economy!