For what it is worth......
In some major cities they have started......but if you have cable tv, use their security system and bundle it. I just saw the first demo of a system with the cameras tied into the cable/fiber/ip/wireless (simplified), cameras throughout the house. You hit an app on your phone and boom, there is your house, windows, doors, your PC web cam and you can scan the house from the smart phone.
Whenever a door or window opens, you are alerted on your phone with a pic capture of who it is. with settings, you can have it alert authorities or just alert you and you decide.
With Fiber Optics being the norm now, reliability is up 100%. Can bundle it and save a chunk of change over alarm companies.