I can see the value of lasers for training, particularly for point shooting training. But, in a test I ran at the local range I found It actually slowed me down to try and put the laser on the target and then squeeze off a shot.
It's all training I know, 100,000+ (at least) rounds with iron sights, 100 (at most) with a laser. But I find, in my case, if I look at the target and draw my gun, the front sight falls right where I'm looking and the rear sight is good enough for government work. With the laser I was searching for the dot, once I found it I could steer it onto the target. Much slower in my case.
The only value I can see in a laser, for me, would be the intimidation factor... Ignore the laser, use the sights, and let the bad guy see the laser pointing to the point of impact.
My $.02
Kent