For all the complaining that "small businesses" do about bank fees, I wonder how many stop to think about how much extra volume those cards generate (albeit at a smaller profit).<p>I'm old enough to remember the days when people had to carry cash or a checkbook to pay for their retail purchases. I cannot see any way that impulse purchases are not way up in the age of debit/credit card payments compared to then. And online businesses certainly wouldn't be where it is today without the existence of debit/credit transactions.<p>I'm not speaking from firsthand knowledge, but I think that for the lower barrier to impulse buying, the reduced need to handle cash or worry about bounced checks, that it might well be worth fees that "averaged 1.63 percent of the transaction amount"