I am used to pinching every penny out of every service and product that I use. I love my home and it has had the same heating and air conditioning system for almost twenty years. That is on the extreme end of an HVAC system's life cycle. I have kept the HVAC system well-maintained with regularly scheduled maintenance, and in short, all the necessary care to get as much life out of the HVAC system as possible. However, machines break down over time, just like everything else, so despite all of the upkeep, it was no longer tenable to try to keep my old HVAC system after two decades. Service visits increased in frequency. Telltale noises developed indicating that the HVAC system was on its way out. I was loath to pay the price to purchase and install a brand new HVAC system, but I knew that the service costs for my old system were piling up, and it would soon cost more to try and maintain the old system than purchase and install a new one. Finally, I resolved to purchase a new HVAC system. I consider myself to be frugal with my money, but I decided that if I was going to purchase a new system, I would make sure that it was a cutting edge and super-efficient model that would serve me well for at least as many years as my old system. Everything turned out great with my new heating and air conditioning system and I am very satisfied.