I use the shotgun for speed shooting. Ideally, I'd like to put a Burris speed dot on it, but many places won't allow me to compete with optics. My father has an M1 with the ghost ring sights and I can aquire targets much quicker with his (especially targets of varying elevation). So, I already know I like the ghost ring sights better, and $100 is reasonable to me. I just need to know how involved it is to install them.