Are rare things more appealing to society?

im wondering if the fact that something is rare makes it that much more desirable to society. A couple classes ago, we talked about music and how more people would choose to go to a concert than buy the music on itunes. The point was made that if you go to a concert you get to experience the atmosphere that comes with the concert which you couldn't do if you bought a CD. my question is whether concerts would be just as popular if they were as accessible and convenient as music on your ipod would be? or to generalize the question, does that fact that you can never have the same experience again with certain things( like concerts), make them more appealing to society?