ok...say your house has the regular alarm system...but would you spend extra money to upgrade ur security system? like security cameras or other security devices ? im planning to open my own business(within the next 2-3 years) and i need some info....--Answer1:There are many companies doing this now. I am sure that if you work real hard, you can squeeze into the market as well..--Answer2:Buy a gun. Good investment.If you dont know how to handle one learn. Get used to using it and cleaning it.You wont need cameras then.