Aaron Schiff notes, quite rightly, that eBay uses anticompetitive tactics in order to retain its market share:
One of the things that probably makes it hard to compete with eBay is
that eBay ‘owns’ the reputations of its users.eBay Watch: $30M Fine, MySpace Goes Live With Skype, Green Monday SuccessChoosing Amazon Over eBayeBay Watch: Goldman Raises Estimates Again, Tiffany Trial Briefs FiledeBay vs Amazon: My TakeeBay Q4 Looking Good - Analysts
