I’m selling my Takamine acoustic that I got signed by Dave Matthews on a movie set in Louisiana. I had it listed for not much over the going rate for a Takamine G series. Talked to a buddy and he told me to get it authenticated. Turns out it’s pretty easy to do and not very expensive. Should be able to put a few more bucks on the asking price. Anybody have experience selling/buying a signed guitar? Tips, opinions? Looking to put the money toward a Jag or Duo Sonic.