Putting monetary values is much like putting a price tag on your favorite pet. I'm still wondering why anyone would sacrifice quality sound when out camping. Camping should'nt be a reason to leave your favorite instrument home. It feels good, sounds good and by habit you will enjoy your outing more using your Gibson, if it is that valuable, maybe leaving it in the case forever to preserve it's antiquity value is more important.
You have a beautiful instrument, use it. If you have to constantly worry about it's value and possibility of damaging it while out and about, then you are moving in the right direction. I got rid of 4 different Martins over the years and frankly feel better about ridding myself of the "worry, worry worry" crap that goes with toting an expensive instrument around. Glad they're gone because it was much harder to leave them home in their cases than not having them with me when I needed them. Going to different music camps I see the best of instruments come out, the listening ears even at a campgroud deserve the sweet sounds of that Gibson.
Mudjack