I’ve always said that EBay could do even more business if they ditched listing fees and derived most of their revenue from add-ons and success fees.
In New Zealand, the largest online auction business, TradeMe, accounts for over a third of total web traffic here! This on the back of zero listing fees.
News just in that Ebay will cut its listing fees by around 50% and make the lost revenue up by increasing success fees. They should have done it earlier!
Ben Kepes is an analyst, an entrepreneur, a commentator and a business adviser. His business interests include a diverse range of industries from manufacturing to property to technology. As a commentator he has a broad presence both in the traditional media and as an extensive blogger. He sits on the boards of a number of organisations, both commercial and not-for-profit. 
I also think that Trademe should waive success fees for a $1 reserve auction.