First, you have to determine what you hope to get out of a home security system. If your goal is to keep intruders out, then most systems will do that, or at least alert you and the authorities if you have a break-in. However, home security systems also allow you to check in on your home, pets, and kids while you are away. That is an invaluable feature that, for many people, is well worth it. The best home security system can give you peace of mind knowing that you and your loved ones are safe and that is priceless.