When I was young and innocent – young and stupid would be more accurate – back in the 60s, I carried a Martin D-28 all over Canada and down into California - in a cardboard case – hitchhiking, jumping trains and delivering drive-away dealer cars. The guitar not only survived my careless treatment, but never suffered any ill effects from a lack of humidity. Truth be told no one seemed to be aware of any issues related to dry air back then. Fifty years later its different.