I think laser grips are well worth the money. Red colored lasers were the original, and they work well in dim or low light. In bright light or day light, best case scenario, you may be able to see the laser at 5 to 7 yards max. I realize armed encounters can occur at any time, but I think for me, most of these opportunities would occur during the hours of darkness, so the red laser works okay for me - at least in theory.
For my Airweight J-frames, such as a Model 642-1, 38-0, or 638-1, I use the CT LG-405 grips. They are a boot grip style, and they will fit in your front pants pocket - I use DeSantis Nemesis holsters to carry them in. To me, the key advantage of the LG-405s is that they have a channel between the grips and the frame of the revolver running along the back of the grip. This channel results in the formation of an air chamber or pocket, which helps soak up the recoil when firing the revolver. With the Airweight revolvers, anything that helps with recoil management is to your advantage.
With the all steel J-frames, such as the Model 60, or 649-0, I use the CT LG-105 grips. The LG-105 are a hard polymer, boot grip style. I think the extra weight of the all steel revolver helps manage the recoil.
In the enclosed photos, the LG-405 grips are on the Model 638-1 (top) and the LG-105 grips are on the Model 649-0 (bottom). The air channel on the LG-405 grips can be seen in the second photo on the Model 638-1 (right) vs. the LG-105 grips on the Model 649-0 (left).
By the way, I've purchased all of my laser grips used from the on-line sales store for used merchandise. I think they average about $120.00 - $150.00 per pair.
Regards,
Dave