It may be the cost, or it may be the way they are installed. It all depends on the cue maker. I offer 5/16 X 14, 3/8 X 10 and the radial. My favorite is the 3/8 X 10 because of the hit and I like the pins threaded all the way. I cut my own glue slots. I still make equal amounts of 3/8 X 10 and radial cues. I also have my radial pins made privately. So they are made to my specifications and weight.