I usually don't like telling people to take the short cuts, but as far as the PP goes, it would be best recommended to keep it for its mandatory time(6 months?) and then remove it off. Only add it on when something goes wrong and you need a tech(doesn't make sense for replacement parts since you only pay $15 for shipping and handling), and that will be the number one Bill saver. This will keep you with only the services you need. You are not punished at all if adding on after something goes wrong with your system.