For payments alone, you can't charge enough to cover the credit card transaction fees because no one will pay it. They all try to make it up in volume via a loy

For payments alone, you can't charge enough to cover the credit card transaction fees because no one will pay it. They all try to make it up in volume via a loyalty program or sell the data to others. Other marketplaces can take a percentage off the top well in excess of the fees, or they'll even add the tx fee on top to fully pass it through.