I'm sure a fair amount of guys take credit cards. I never did because I didn't want the extra hassle and give up a few % of every transaction. Starting a while back Intuit the maker of QuickBooks Pro started allowing my customers to pay via a link on the invoices I email. The fee is only 50 cents per transaction. If the transaction is $100 or $10,000 I still only pay 50 cents. I have no equipment to mess with or anything at all to deal with. For guys paying several percent of every transaction this could be a big money saver.