A tiered selling fee structure might encourage longer-term selling volume and keep sellers from migrating to other sites.Something like:Basic Seller Fee - 5%>50 Completed Sales and >95 Feedback 2.5% Selling Fee>100 Completed Sales and >95 Feedback 1.5% Selling Fee>500 Completed Sales and >95 Feedback 0.5% Selling Fee.Give us something to shoot for!Anarcho47