You haven't responded to the point that the cost is sunk. I have made free apps and the indirect dividends have been huge. You yourself make a free app (and I

You haven't responded to the point that the cost is sunk. I have made free apps and the indirect dividends have been huge. You yourself make a free app (and I donate to it monthly, hurray for me) and yet you don't see why anyone would want to make a free app?