My biggest problem with a service like pest control is I can't tell what it does. I'm not talking about getting rid of a hornet nest or squirrels in the attic, I'm talking about the door-to-door salespeople who want you to subscribe to a quarterly sprinkling of some magic dust around your house. If I could get a trustworthy measurement like "number of 2x4s not destroyed by carpenter ants" or "sqft of siding not rotten because of nests" I would be a lot more open to it.