1) Just like to say that being an SFT and not under anyone in the store means I could date anyone I feel like(not that I am, but it's nice to have options 😀 ).
2) There are three types of camera systems: Analog, Digital and a Hybrid system. Trust me, this equipment can become VERY expensive. Target doesn't use the cheapo cameras you can pickup just anywhere and hardware/software to receive and control multiple cameras at once is specialized. One camera and one control box just sent us back about $3,000(I believe) awhile ago.
Was it a PTZ? That makes more sense. I'm pretty sure stationary cameras are in the low hundreds.