For heaven's sake, KEEP 'em!! It means SOOOOO much more at selling time, particularly if you have had th firearm for a long time. I NEVER get rid of the original boxes, ans as has been said, keep them in good shape too. Keep them dust and dirt free, in a cool, dry place if possible, and out of the sun that can leach colors. Collectors just drool over guns in the original boxes with the original documentation, such as bill of sale. Do yourself a favor, and hang on to them.