What should I sell my Pioneer Elite 61'' TV for?

So I have to get rid of my beloved Pioneer Elite Plasma TV (electric bill + Plasma TV = sad face) and I am unsure what to ask for it since it is sorta old but it is still made damn well. Still in perfect condition.. Any advice would help

Info: http://www.pioneerelectronics.com/PUSA/Home/Plasma/PRO-1410HD