Nice gesture - $9 R-12. Costs about $22-$26 a can in the U. S. in case lots(12 cans in a case).
The issue of it being illegal doesn't bother me at all. I could care less. Like you said, the big $$$ guys have their hands in it and that's how that happened. A group of German scientists have debunked the so-called ozone theory.
Nonetheless, if ya get caught in the U. S. bringing it in, you get cuffed and sent to a federal prison. I'll keep paying U. S. prices.