RandyinTN--
You know, I totally relate to what you said --- " Now it seems we need to spend more money to protect the ceramic coating that is protecting the paint.""
When the first real coating came out -what - a decade + ago - there was no talk or need to "protect" the coating like there is today...
I have personally seen a coating go years before I eventually took it off and re-applied it all over again, just so I could have something to do (and keep up my skillset on Black paint), and it was so easy because it HAD protected my paintwork, and all those years after application, all I ever did was wash it, blow it dry, and not very often, apply Opti-Seal to it..
Certainly since then, there have been many more coatings rushed to the front every year but none have the years of durability testing, etc., that the first one had BEFORE it was ever introduced way back then, so that is something else I look for when I occasionally read the constant marketing noise from the coating world today...
What I have found and learned from the original Coating people and my own experiences with it on my Client`s vehicles and my own vehicles is this ---
--- The Prep Work and Application will Always affect the ultimate clarity, gloss, and length of time the Coating stays on the paintwork..
--- The less you touch it, the better it will be..
--- The only time you touch it is with a full on wash with a great, soapy, sudsy, lubricating, soap with a chenille mitt that you carefully look at every time before you place it on the paintwork..
--- Only use a specific soap designed for Coatings (CarPro Reset) that has absolutely NO junk in it to further contaminate the coating, and the coating will look and bead water better for years..
--- The more you can dry the vehicle with air before you ever have to touch it, the less opportunity you have to perhaps introduce a slight scratch, etc. on the coating..
--- If the coating manufacturer recommends any type of spray QD, perhaps try this as a rinse-aid after most of the water has been blown off..
---As much as can be withstood, refrain from wanting to constantly touch the paintwork to the point that you are introducing scratches in it...
These rules are what I personally go by and even when slightly dirty, (because a good coating will reject dirt for a long while) (and even longer if it`s washed with the correct soap), my Black Jeep Grand Cherokee always looks beautiful, glossy, and never fails to blind me if I look at it in the sunlight..

Good luck with your research !
Dan F