i was thinkign about trading in my line 6 120 iv just got it in feburay of this year it works fine and looks brand new how much would i get for it if i bought it at $399
Considering they cannot sell it for the new price, I'd expect to get somewhere less than half what you paid for it. A lot of what you get will be determined by its desirability, condition and the mood of the salesman.
about $120 - $150
Sell it on EBay or Craigs List. You will get more for it. I usually get 70-80% of what it cost this way. Trading it in they have to resell it and make a profit. Selling it on Ebay or Craigslst you are selling it to someone who wants it and will keep it and either wants a deal or can't afford the original cost.
they do usually give you 10% off something if you buy it right when you trade it in.
The will give you 60 to 70% of what it goes for on ebay depending on condition and such so your probably looking at 100-120 bucks