I was planning on getting some, but after reading some of Gabe Suarez's discussions on the warriortalk.com forum, I decided to hold off. His main point was that in his FORCE ON FORCE testing scenarios, folks were not as fast as they thought in getting off their shots. It seems counter intuitive, but I I have not conducted 100's of force-on-force scenario drills/tests/competitions.
Additionally, the laser is asserted to have value in specific circumstances (some mentioned above, e.g., sighting at long distance), but the logic is that a red dot would perform much better since the laser point is not easily seen at farther distances during the daylight, where you don't have the issue with a red dot sight. Of course the cost of the red dot is 3-4 times that of the laser, which is a real consideration. He says that he sells lasers, but would not put one on his gun.
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Update On Red Dots and Pistols - Warrior Talk Forums
An excerpt:
The discussions that ensued got a bit heated, in the end the force-on-force training to test use of lasers, red dots, traditional aiming, point shooting, etc. ,,,, seemed to me to be the way to evaluate effectiveness.
If the technology and your appropriate training build your confidence, which is key in an SD scenario, then I would say that is what counts.