I think ultimately everyone has to weigh the benefits/drawbacks of such a service. I know folks who have alarms installed and then never set it because its not habit. Or if they have a scheduled arming setup they get annoyed by it and turn it off. Or they turn the whole thing off because the installer didn't design the system around the lifestyle or types of occupants including pets with motion programming. I think eventually geofencing will become more integrated with alarm systems so that the system can logically process the occupancy of multiple inhabitants to determine automatic arming events. Many people inherit systems installed by another family and IMO almost all home security systems need to be tailored to occupants for them to be effective. It's not just a tailored to the premises deal. My experience with programming is there should be as much if not more consideration to tailoring the system to the lifestyle and habits of the occupants vs tailoring the system to the premises for the system to be effectively used. When alarm companies are promising free installs with a 2 year contract, it is not in their best interest to really spend the necessary time to evaluate the home/business and the lifestyle/expectations of the occupants and or tailor the install after the occupants get a chance to use the system and integrate it into their lives. Nor is it in their interest to install anymore necessary sensors than the promotion dictates.
there are a lot of circumstances you could potentially plan for and you could spend a small fortune to try to cut down on many other negative events like flooding etc., like installing water/moisture sensors and a triggered main shutoff valve, but one has to decide how far to go. At some point you have to decide what sacrificing your quality of is life worth worrying about all these bad hings happening and spending the time implementing multiple fail-safe technologies. Before you plunk all that money down on a monitored service I think most people can do a better job at implementing one time cost strategic deterrent methods.