I've personally dealt with people through the course of my job that have been held at gunpoint(beaten tortured, and robbed blind in the process) by gangstas from another mother, or country. This is as far north as San Antonio, but it regularly happens in Laredo and McAllen area. Think like Joe Horn.
Those cameras look to be pretty new and good quality.
I used to install security and surveilance cameras along with alarm systems. I have to say, when you stray from the ADT crap there are some really nice features you can incorporate into the systems. and not just for the overly paranoid.
and that is proof that i was looking for...i am always asked by people that i know "why would you need an AR15 or an AK 47" well you have to be able to have enough power to take down the threat or match the threat. one of the robbers had an AR!