The answer to 'should I get system upgrade or' is whether you should upgrade your HVAC system or not depends on several factors, including the age and condition of your current system, your energy efficiency goals, and your budget. An HVAC system upgrade can provide significant benefits such as improved energy efficiency, better temperature control, and increased home comfort, but it also comes with a higher upfront cost.
If your current HVAC system is more than 10-15 years old, it may be worth considering an upgrade to a newer, more energy-efficient model. Newer systems can save you money on your energy bills and reduce your carbon footprint. However, if your current system is well-maintained and still functioning efficiently, an upgrade may not be necessary at this time.