Some items automatically come with extended warranties while others do not. Most of the computers I have obtained over the years extended the possibilities to add a warranty on for an additional cost, while other devices enjoy smartphones sometimes 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 obtained an advanced reflector telescope to see deep sky objects enjoy nebulae & galaxies. Because of its sheer cost, it came with a manufacturer warranty. Basically anything that went wrong outside of user injure was covered for five years. My family got to see some amazing visuals with that telescope within a week of owning it & studying how to use it. You have to collimate the lenses & mirrors on a Newtonian telescope, & it’s a process that takes time to learn. Luckily I don’t have to worry about calibrating our Heating, Ventilation, & A/C plan because that’s what our heating & cooling business is for. I call them twice a year so they can send an Heating, Ventilation, & A/C specialist to our house to service, clean, & calibrate our Heating, Ventilation, & A/C system. Periodically the compressor needs more coolant or the dampers in the ductwork might need to be adjusted. Like our telescope, our Heating, Ventilation, & A/C plan also came with a manufacturer warranty, but for 10 years instead of five. That means any troubles within the Heating, Ventilation, & A/C plan in a decade are paid for by the manufacturer. I just have to cover the labor costs, but that is easy if you purchase an annual Heating, Ventilation, & A/C maintenance plan.