I haven’t owned 1000’s of lights like some here have so I can only speak to my own experience. I have more than a few smooth finish lights. A few in stainless and a few copper and brass. Have ya’ll tried to use these smooth lights on a regular basis? It’s pure hell I tell ya. They spend more time on the ground than they do in my hands. They are jewelry, not practical at all. The only reason I have them is because nobody I knew wanted them. If they did take one they brought it back right quick.
I suppose if you just want a pretty light and don’t plan on using it then, I get it. That would make much more sense. Not putting down a non-knurled light at all. There is one sitting right next to this keyboard. I would never carry the darn thing, though it is really pretty to look at. I have knives that serve no useful purpose other than to look pretty so I can relate. I also don’t sharpen them either.