Maybe you will think twice before tricking out your guns with 4 pounds of hardware that glows, helps grip, and scratches your ass while you're shooting bad guys
Glows: Night sights? I fail to see anything bad about night sights. They are a must for a HD gun if you ask me.
Helps grip: The relationship between your hand and your firearm is a very import one. Why wouldn't you want to enhance it?
4 pounds of hardware: Yes, anything that adds an extra 4 pounds to a firearm is useless in my opinion.