1 When I showered outside, I could not turn the shower head off with one hand.
2. It is much easier to stow the shower hose since the shower head now comes off. I have the holes blocked off that were cut to shove the extra hose inside for storage. It was just an access point for bugs in my opinion.
3. Now I can hook up any water hose if I need more length.
4. Because I like to tinker with things. Just something I hadn't done yet.