Wireless security cameras are great if you don’t want to have to worry about placement, as you’re no longer tethered to power outlets and Ethernet cables. But the more you rely on wireless, the more you need to factor in the cost of WiFi reinforcement and cloud services. Also, many wireless cameras are magnetically mounted, so could be more easily stolen (taking previous footage with it if stored locally). Ultimately, each house’s infrastructure and your needs will determine the best means of installation.