Everyone's entitled to their opinion...
I did mine with the John Deere Blitz Black paint, for a couple reasons:
The factory paint from 1977 was trashed and scratched beyond any correction possible.
I wanted the satin black look.
The JDBB paint is damn near indestructible. It's had gasoline, power steering fluid, ATF, coolant, bird poo, and almost every other contaminant possible, and it all just rinses off.
I needed a cheap paint job.
Overall, I'm really happy with how mine came out, and I've done the same treatment to 3 other friends' cars. Am I saying that it's the best paint in the world? No. Am I saying that it accomplishes what I wanted? Absolutely. I get a lot of compliments on it, and to be honest, I love how low-maintenance it is. I really just wash it, and dry it off. I can spend more time detailing my clients' cars, instead of spending it on my own car.
Just my $0.03.