Well I' ll give you my $.02 . Back quivers are expensive , but awesome !! My Kwickee quiver costs me $12 and my Rancho Safari Catquiver II was about $ 90 .
However I was continually getting my bow mounted quiver hung up on vines and saplings . I never liked shooting with it on and I dropped it before when trying to put it in my pack while I was 20' up in a tree . I also tried a hip quiver and never liked it either. The Catquiver is very comfortable , holds all my gear , more arrows than I' ll ever take, and as far as a shot opportunity goes........it' s just as easy to get an arrow out and nocked as it is with a bow mounted quiver . And when going into thick brush it' s a lot easier with a quiver on your back - Trust me !!