If you've properly practiced your presentation ( thousands of repetitions drawing and dry firing from the holster) your sights are on target when the gun come up, even in the dark.

You don't need night sights: things are on target virtually automatically regardless of lighting.

Unfortunately, few folks are willing to put in the practice needed to develop much skill, so folks look to buy a technological solution instead of doing work to develop skill.

Night sights are unnecessary and distracting.

Plain black sights work best.