People complain about the "mark up" on a/c parts and service------ it's a business, that needs to make money just like any other business,- I'm not saying some companies don't over charge-- but my local chevy dealer is $195/hour for service with a 400% markup on parts. And my local "non- dealer" auto tech is still $125/hour plus a 200% mark up on parts ( but his parts cost is higher than a dealer)
You need to look at the way your a/c service company charges --- some have free or low gimmick service fees but huge parts mark up, some use flat rate book type fees, some just charge time and materials
By the way, in 2025 all new equipment must be A2L refrigerant ( slightly flamable) R-454b and r-32 will be the new refrigerants used
In a side note, we all know that a magazine and a clip are not the same--- what we use in air conditioning units is called "refrigerant" not "freon" --- freon is a brand name--- kinda like kleenex is a brand name for tissues ( sorry, just a pet peeve of mine and a way to tell if someone actually knows what they are talking about)
If you dont understand the "A B C's of air-conditioning and sub-cool and super heat measurements" you shouldn't be adding refrigerant to your system --- just because you can buy tools and refrigerant on the internet doesn't mean you know what you are doing.
Too much refrigerant is as bad or worse than too little (just last week i pulled 12 pounds of 410 out of a system that was only suposed to have 6 pounds--yikes!!) - and I don't know how many times I've seen unsealed jugs of refrigerant being sold on ebay, craigslist, or fb marketplace ---, do you all know that refrigerant can be pulled out of a system and "mixed" in those jugs? How do you know you are getting "pure- clean" refrigerant ? Has it been mixed? Is it r-410, or r-22, or even r-12 or r-134 or r-1234yf -- there are ton more too I would never buy refrigerant off the internet unless it's a reputable source that actually asks for a copy of your 608/609 certification license
Check out the market price of r-22 now-- it is like rl26 in what the price has done recently since ot can no longer be manufactured in the u.s.