If you find somebody sufficiently serious who specifically wants your stuff no off the shelf security system is going to do any good. The primary value for mos

If you find somebody sufficiently serious who specifically wants your stuff no off the shelf security system is going to do any good. The primary value for most people is in convincing would-be thieves that your residence isn't worth the trouble. A dog with a nasty bark is one of the most effective ways of convincing them. Any other security-related services (actually attacking intruders, waking you up, etc) are really bonus.