I think Card Pool could make some money, but it also got me thinking about the retailers. Don't many of them operate on thin margins? If they offered card holde

I think Card Pool could make some money, but it also got me thinking about the retailers. Don't many of them operate on thin margins? If they offered card holders 90% cash back on the card amount, they might actually make more money from partial reimbursements than they would from the merchandise sales.