| | Re: Realistic Price For My Used 9780
Used but mint 9780's seem to be fetching between $150 and $200 on eBay. You get slightly more if they're unlocked, and even if it doesn't bring more money unlocked, the fact that it can be used on other GSM networks broadens your audience and can mean the difference between a sale and no sale.
Prices change quickly with used phones and every month brings lower prices. Also, as a new model is released the price of older ones drops.