Best Protection Systems in Lexington KY

I've been a comfy club member since 2017 and was highly impressed with the tech that came out twice a year to start. Two years ago I started asking myself the question do I need everything they are recommending? The reason I asked this is the price of maintenance and cost of what they were recommending was increasing. The other thing that bothered me was they gave large discounts if you elected to fix it that day. I've been around long enough to know nothing is free and I'm happy to pay, but when they say it costs $3,000 but if you do it today it will only be $2,000 something isn't right. I choose to delay everything. A customer service rep Sarah reaches out to ask how it went. I told her the truth. She told me I didn't have to have anything done, and that the techs make money on the the services they sell, I was flabbergasted. I told her I want to know what I need to have done and paying techs on the more they sell the more they make is a terrible system. How do I know if my HVAC needs the $3,000 of services or they tech just wants to make some extra money? I won't be using them again.