A home surveillance system can offer peace of mind and an effective deterrent against most burglary attempts, but it can also cost a pretty penny to have one installed. According to HomeAdvisor, the average homeowner spends between $831 and $2,233 to have their home security cameras professionally installed. For homeowners on a strict budget, fake security cameras are a popular and often more affordable alternative. But can a dummy be as effective as the real deal, or will a fake security camera actually hurt your home security?