Hi, i found one of these for sell at a local Guitar Center, but its used. They have it listed for $650, and its just the head, no combo. I was wondering if i should ask them if they would lower the price at all? I was planing on doing this anyways, but what price do you think i should aim for? Ive searched for info on this head on this forum, and others said that they have bought the combo version from GC for around $500. Also, i will be doing a trade in for this. Im thinking of selling my Eden Nemesis NC410 combo. I paid $650 for this brand new, but they sell it at muscians friend for about $1000. So i should get about the same price back that i paid for it, only then going to be traded for the Mesa. Im just wondering what people think about this, and if its a good idea? Or should i hold out? Thanks.