Manual imprinters are good to have. I recieved one as a back up to my credit card machine. But the machine I have also works without a phone line. It stores all of the transactions until you can get to a phone line, then you can upload them. The shows I did last year I noticed that people who paid with credit, debit cards usauallly spent about 20-30 $ more than cash customers. If you have a Compass Bank near you...they are currently offering a 6 month free trial on credit machines. And there % per transactions are great. .20 cents plus 1.9% per transaction for credit cards and .20 per debit