A good friend of mine who plays well guitar loves to have a different kind of acoustic and electric guitar. Last week, we watched a free concert near our workplace. After the concert he asks me to accompanied him to visit a near musical shops , he bought a new string for his guitar. While I scan those gibson hardshell case . According to him, that kind of case is a good investment for a very good guitar. Now I understand, why almost all stringed guitars in our worship hall before was enclosed in those kind of case.