That is like saying that the gold watch should cost the same as the gold plated watch, which shouldn't depend upon the supply and demand of the materials it is

That is like saying that the gold watch should cost the same as the gold plated watch, which shouldn't depend upon the supply and demand of the materials it is made out of. Also, considering most digital goods can be copied in mere seconds, it would appear that they should be priced at $0.01. As for food, beef that is 30% fat should cost just as much as beef that is 3% fat. And heaven forbid we apply this to relationships. If you are looking for a one night stand and spend the required hours, then you must get a one night stand. The supply and demand of your particular looks/social skills aren't factored in, only the time you invested.