Several points: ttousi had a woman student who had never shot a gun before, and she was just plain horrible, and couldn't hit anything at 21 feet, until he handed her his 642 with the LG's, and then she hit the target. We're talking the worst shot you've ever seen in your life w/o Lasergrips, and passable with them. It was a night and day difference.
Night sights - my 50 GI comes stock with the Heine nights sights, and while they would be very nice for a jungle ambush of some sort, in an urban environment involving car headlights, street lights, or anything else, their utility is limited, and if somebody points even a small flashlight at you, they're useless.
Below is the first target I ever shot with LG 301's while I was half blind and monocular with catracts in both eyes, and I had to shoot left eye right handed for the first time in my life. The fact that I could shoot a 25 YARD group this good pretty much proves how miraculous Lasergrips are.
Next, the hard data from the CTC catalog cites approximately 20% hits fired by officers w/o LG's and over 80% hits fired by officers WITH LG's. That's a hell of a difference.
And finally, let's talk intimidation. Laser sights were first used in prison riot control, and when that little red dot wound up on a convicted murder's chest, they suddenly decided to become Brits and "nip off to have a spot of tea in me cell, governor!!" Somebody points a gun at you, maybe they're going to miss, and maybe they're not. You wind up with a red dot right over you're heart, and you KNOW positively that you're 100% F****D. Would this view be as intimidating without the light show?? I don't think so...