1.   As debit purchases grow in number, network traffic will also grow.

2.   Unlike credit card transactions, where consumers have a chance to review monthly statements and dispute and withhold payments, debit card purchases are immediately deducted from their accounts.

3.   While not as bad, debit card purchases also can be hard to identify.

4.   And they still have to sign a receipt for credit card transactions or enter another personal identification number for a debit card purchase.