Most surveillance cameras in use today remain analogabout 85 percent, estimates Fredrik Nilsson, General Manager, North America, of Axis Communications. IP-based cameras capture images of decent resolution but not a high frame rate, which reduces bandwidth and storage requirements. On the discreet side, a camera the size of a Phillips-head screw can go for less than $80. Cameras dummied up to look like utility boxes start at about $315; more high-powered pan-tilt-zoom (PTZ) cameras can run upwards of $2,000.”]
Source: https://www.csoonline.com/article/2122881/surveillance-system.html