Always happy to have another option to buy / sell items... so long as we don't entirely dilute the market (Bitmit looks to have such little buyer activity). Also... $10 fee... perhaps make a fee based on what amt you can sell?

Ex:
$0 fee - limited to 0.5 BTC-value items
$5 fee - limited to 1 BTC-value items
$10 fee - no limit on value

That way small time sellers can get in and perhaps start establishing a base - then upgrade later, or choose to directly contribute collected coin towards fee.