What's the best way to sell almost new camera gear?

I bought a Sony Nex 5 dual lens kit camera, etc last year but really never got the chance to use it.
I decided to sell it as I could use the cash for other purposes rather than leave the camera in a cupboard gathering dust.
All the trade shops that take second hand kit would only offer a tiny fraction of what I paid, and then only in part exchange against more camera gear.
It suggests either the basic gear has such a low intrinsic value, or the dealers make such high margins on the new kit they are intent on doing the same on second hand equipment.