Sir we have weighed your luggage, now we have to weigh you. Are you serious? Yes, your ticket total depends on weight. Most of your fare is to cover the jet fuel needed to propel you to your destination. Don't worry sir, we will just show you your weight and your price. What you paid before just covers the airline profit, the salaries and incidentals. You thought you were going to fly to Australia for $50? Gotcha!