"Home security systems can also save you money. Many home insurance companies will offer discounts for homeowners who have such a system installed, as it makes that home less likely to incur loss from a burglary."You'll of course have to invest a little bit for the cost of the security system (installation, the actual system, etc.), but in the long term, the system will pay off itself thanks to the savings you'll see on your homeowners insurance. Essentially, you'll get a free security system in a couple of years thanks to the discounts you'll receive!
Read the entire article: "Home Improvement: Benefits of a Home Security System."