I've owned a laser for about a year now.....had it on my EDC for the last three months. I like it there for now. I've trained without a laser for the last 20 some-odd years......I train and qualify without a laser. I'm pretty good without it and I'm not gonna start relying on it to supplement on any skills, or lack of. I believe it can be a useful tool to be employed in certin situations, but when the poop hits the air-motion-generator, you'll fall back on your training.
I agree, for the most part, with SIXTO's overall assesment of the things. You fight like you train, so train to fight....and win.