I sort of like the stories. However, our club stopped including stories at some point several years ago prior to my CAS introduction. I'd only heard stories about "stories" and have only seen them used once at another club 4 years ago.
It was my turn to write a set of stages for one of our monthly matches this year, so I decided I'd included a story for each stage in my match. If you care to read them, you can find them here. I liked including the story. I also included a picture of the stage front so anyone who is un-, or not very, familiar with our range could visualize the stage (we publish the stages in advance). Next month, it was someone else's turn to write the stages, so no stories. The hard part would be coming up with fresh and entertaining stories month after month, and year after year. I suspect we may only include them at one match per year.
I've already some ideas for a Looney Tunes match (think Elmer Fudd, Rascally Rabbit, Yosemite Sam, etc.) and then another for a six stage shootout at the OK Corral, with stages 1 - 4 leading up to the shootout, stage 5 representing the shootout, with stage 6 representing the post shootout chase. It might take us two or three years to actually get around to using them.