I need help justifying 3 street bikes to my wife. Not sure if my reasons can justify it: 1. Enjoy your good health while you have it. 2. I enjoy riding different types of bikes. 3. I am retired . . . you can only do so much yard work and home improvement projects . . . the more bikes I have . . . the more tinkering I can do. My wife says: "You only have one butt" . . . we should save our money for the uncertain future. I ride mountain bikes on single trails . . . Which is why I prefer street bikes.