There are many purposes for using a motion activated security camera. Portably, the most popular reason for using the motion activated security camera is to conserve electronic resources. On the other hand, these cameras may be used for an entirely different reason; to provide alerts like an alarm system when something is there.
A home security monitor camera can alert you to the arrival of any guests long before they reach your door. A home security monitor camera can also be used as a baby monitor to keep a watchful eye over your child while they are awake or asleep. Finally, a home security monitor camera used in conjunction with an electronic door can be used as an entry/exit monitor, allowing the user to see who is at the door and allowing them access without the need to greet them at the door.
Have you considered protecting your places of worship with church security systems? Although a church building is sacred ground, unfortunately it is also a fairly popular target of burglaries and vandalism. However, with a church security system you can deter criminal acts and document them with video recordings if need be.