I used to be in the light off the gun crowd. A few weeks ago the alarm in my shop went of at about 2:00 AM. The shop is a separate building about 100' from the house.
Up I went, gun in one hand, light in the other. Now I had to get the shop unlocked, open the door, shut off the alarm, all while looking about for bad guys. There was a lot of shuffling stuff around, trying not to tangle up the hand with the gun in it, and a lot of time wasted.
Now I have a Streamlight on the end of my gun, which compliments the Crimson Trace nicely. I agree with the other posters who have written that the light/gun does not need to be pointed directly at whatever I am looking at, and besides that, my finger is never on the trigger until I am ready to shoot.
As far as those who say that the light highlights me and makes me an easier target, I am already out in the open to some degree just by virtue of moving about. So unless I am going to cringe behind the couch and hope the bad guys go away without hurting me, I am going to be taking some sort of risk. At least this way I can see what I am looking at, and I have a free hand for whatever I might need it for.