A 10" LX200 GPS... I've seen them sell for $2600-$2900. (Sold new for $3234.00. At least thats what I paid...) But thats the "SMT" model. For your s. I'd probably think about $300(ish) less... And up until only a few months ago, when they started the whole new "R" and now "ACF" optics, the LX200 GPS was still the CURRENT model... Which means that depreciation is NOT as much as some would believe. It's not like a car.