But if you extend the life of your current bow for an extra few years, you have no reasoning to use on your wife to convince her that you must have a new bow. Actually, kidding aside, with the constant improvement in equipment, a bow that is 5 to 7 years old is pretty much obsolete. My last bow was on old PSE with a 30% let off, when I finally did get a new bow I was kicking myself for not getting one with an 80% let off sooner. Every year the bows get faster, quieter, lighter and just all around better. Do you really want to handicap yourself with obsolete equipment?