I have a Roland Fantom in practically unused condition to trade for something of "equal value". Really would like to have another guitar - Ibanez or Jackson or ?. I bought the workstation thinking maybe I would learn to play it but it just sets there. I sometimes use the drums for click tracks but that is about it. I might consider trading for other studio equipment too (mics, pre's, whatever.) I will base the "equal value" on e-bay sales history, because that is probably where it will go if I don't trade.
