7. This undoubtedly is why so many more are contributing to our rapid growth in this our third decade in home security services. ”Here are 6 wrong reasons why people do not have a home security system. 1:Having home security cost a lot of money. Let us bust this bubble right away. Home security might even be free. Most insurance companies will give a discount on your homeowners insurance for having a monitored security system This discount can ad up to around 20%, and there are even companies that offer up to 40%/ Although a monitored system can cost you around $40 a month, the money you save on your insurance might pay for it. Lately there are companies that offer free installing for their system. 2:You have to pay every month for the monitoring. Many people do not like the idea of having to pay for their security system every month. Lately there are many security systems available that you can install yourself.