I think a good alarm system can be a good product, if it is a local company that has local monitoring and is on good standing with the PD. We had one of those of national chain specials for a bit - waste of time and money. I prefer to go with the German Shorthaired Pointer & Austrian 10mm Auto way of home defense, not to mention lights. With these new LED bulbs one can keep that yard as bright as Tiger Stadium yet uses less energy than a 100w lamp bulb, plus the local power company will often install a flood light for a small fee. Nothing like standing on the back patio and being able to see every square inch of the perimeter!