The one thing I did when the financial crisis hit and suddenly most of the houses around ours were vacant and being stripped of their pipes and wiring was get a new security system. The ADT system that was in the house when we moved in worked ok, but I found ADT's customer service to be so loathsome and inadequate that I was dubious of the thing's value. Also, ADT is part of Tyco, which doesn't fill one with confidence that they'll get their act together.
Anyhow, so I had a new Brinks system installed and felt a lot better about the product and people on the other end of the phone. Then Brinks was bought by Broadview, and I just got the email that Broadview is merging with... ADT.
The good news is that the neighborhood has not turned into a post-apocalyptic hellhole, and if anything, and my new next door neighbors are quite happy about having all new plumbing, wiring, etc. in their freshly rehabbed house.