If I build a scalable website that sells ten-dollar bills for $9, I will probably attract as much traffic as I can afford. If I have a billion dollars to lose I

If I build a scalable website that sells ten-dollar bills for $9, I will probably attract as much traffic as I can afford. If I have a billion dollars to lose I can probably arrange to do roughly $10B in "revenue". I think I will read this sentence once a week.