There is some question if people can resell the music they buy from iTunes. Apple says Reselling iTunes songs 'impractical'. In the article Peter Lowe says "Economically, I don't believe there is going to be much of a market for resold music...We just don't see it as that much of an issue."
What is this guy thinking? People sell CDs because they want money, not because they are cluttering up their house. I can easily see people selling iTunes 2 for a dollar. The question is will they have their full use? I think Apple needs to take account of this.