Recenly bought the sr90 myself. It is everything people say it is. I am just wondering how much I'm going to actually use it. If you have a farm, e.g., or multiple acres of land in the countryside, it probably has real value. Living in a developed suburb, it will be of limited use. Having said that, I partially bought it for the home protection potential. Shine that in an intruders eyes, close up, and you will definitely have time to run, hide, or respond in whatever way you have prepared to do so.