i disagree. ive seen brand new trucks see a huge benefit from paint correction and polish. you can still see some light swirls and marks even in brand new paint. My SRT10 has been polished and coated, but thru the course of a year of me wiping it, it will have hairline surface swirls. So it gets polished every year.
i have several friends who do it professionally. My 17 Ram is coated and has film as well, and the paint on it looks better than half the new trucks that come in. Granted to pay a professional isnt cheap, and some may not see the value. I also only hand wash my vehicles. Coating has to be maintained. So if youre going to run it thru car washes all the time then paying for a coating isnt worth it. If you want to take the time and effort to only hand wash and maintain the coating,, then prob worth it. Personally for me i like my trucks staying shiny and looking brand new. I have the full foam cannon, etc,. They get hand washed and re polished as needed. I already have an appointment with my guy to get the new truck coated and film added when it comes in. approx 2k worth.
PS- it started sprinkling while driving the viper truck over the weekened, i was able to outrun the rain and got home, but while it was raining i dont have to use wipers and it was spot free dry when i got home. Water rolls off that fast.