I remember experimenting in one of the older threads about disabling someone with a strobe. I strobed myself from about 2 feet away while typing a message. The strobe was slightly annoying but by no means disabling or disorienting. I'd suggest that you try the experiment on yourself before deciding that a strobe is the slightest bit helpful in a tactical encounter. If you want to use a light at all in that way, you're probably best off with an enormously powerful incan (Surefire M6 or equivalent), not an LED strobe.
Na I'm not likely to ever get another incan. I've actually already got a couple of LED lights that put out 500 lumens anyway.
Also I can type with my eyes closed, as you probably can too... I'm not sure that's a good comparison.