3/18    Why is a genuine Mac Book charger $60 when it's only $20 on eBay?
        I failed to see a difference in quality.
        \_ Why does popcorn cost so much at the movies? Why do car values
           halve the minute you take it off the lot? Why do you suddenly
           pay less when you become a senior citizen? There are economic
           reasons for just about every pricing puzzle.
           \_ Yes that is true. The question is answered in Chapter 2
              of J. Tirole: Theory of Industrial Organization
        \_ I thought they were $99.