Noriko, actually I don't think it would be a good idea to sell on ebay. In case you haven't been tracking the fendi spy sales on ebay, they haven't been too strong. Most of the bags selling are fakes and priced $500 and below. The few spys that have sold, sold below retail. One seller I know even selling an authentic choco spy had a buyer claim that she sold her a fake bag, and created a BIG problem for her.
Leshent has had the hologram spy for sale for weeks now, and nobody's touched it. And dudeiloveyou has a petrol spy for over a week that nobody's touched it. Both of these are well known trusted sellers.
I also don't care much for the S/S 06 spy designs, but what about the B FENDI bag? It looks really great, and should be released fairly soon.