Insightful but off on a few key points. One should be careful not to lump all Square merchant accounts as unattractive from a profit/revenue standpoint, for example, I know of many Food Truck operators with 2 or 3 units grossing in excess of 1.5-2 million a year. Also don't underestimate the human factor of tangible control, people have always gravitated towards having something in the hand/wallet/purse to facilitate trade/transactions, whether that be cash in hand or cards. Think about the executive who whips out his American Express or other premium credit card at a power lunch, there is a sense of control and equity which is inherent in these scenarios which I don't see going away. As tech becomes more advanced and entrenched in society, it becomes easier to overlook the basic behaviors and emotional content which govern our lives.