Use the fishing lure analogy. Flashy, wiggly, sinking, floating, bright, dull, noisy, quiet, articulated and on and on. The guns and calibers that come and go and come and go again are promoted by the industry trying to extract money from their market (us.). Look at the new red dots on semi autos, tricked out bolt guns. New and improved for the sale. 9, 40, 45 and just about everything else will work for most applications. Semi autos, revolvers, single shots all have their place. In the end, the industry writes about worms and 22’s about once a year. I like them all.