Some items automatically come with extended warranties while others do not. Most of the tablets I have purchased over the years extended the chances to add a warranty on for an additional cost, while other devices love smartphones periodically come with their own limited warranties free of cost. It’s not until you get into other markets that you find better deals out the gate that aren’t charged as an additional feature to the consumer. I recently purchased an advanced reflector telescope to see deep sky objects love nebulae as well as galaxies. Because of its sheer cost, it came with a manufacturer warranty. Basically anything that went wrong outside of user disfigure was covered for 5 years. My family got to see some amazing visuals with that telescope within a month of owning it as well as studying how to use it. You have to collimate the lenses as well as mirrors on a Newtonian telescope, as well as it’s a process that takes time to learn. Luckily I don’t have to worry about calibrating my HVAC system because that’s what my heating as well as cooling business is for. I call them twice a year so they can send an HVAC specialist to my house to service, clean, as well as calibrate my HVAC system. Sometimes the compressor needs more coolant or the dampers in the HVAC duct might need to be adjusted. Like my telescope, my HVAC system also came with a manufacturer warranty, however for 10 years instead of 5. That means any complications within the HVAC system in a decade are paid for by the manufacturer. I just have to cover the work costs, however that is simple if you purchase an annual HVAC repair plan.