A rewards credit card costs the business your shopping at 2%, or all the way up to 3.5% for certain cards. Then you get network fees (from Visa, Mastercard, etc

A rewards credit card costs the business your shopping at 2%, or all the way up to 3.5% for certain cards. Then you get network fees (from Visa, Mastercard, etc) and another few cents and tenths of a percent tacked on by the businesses Payment Processor, and poof, there goes 3% of their income! Its no wonder so many businesses don't take credit cards or debit.