I've got a Vox valvetronix AD30VT I might want to sell in the future. http://www.bajaao.com/valvetronix-ad30vt-tube-guitar-amplifier-p-4039.html It's priced in the market at 16,500. What can i expect to sell it for? I'm hoping for like 12.5 - 13K....that seem reasonable? It's in good condition, works perfectly. Even has a footswitch (not included retail) I got it Novermber '08 from Alberto's.