It is good salt, and if memory serves the production method is patented. Even if the production were easy to reproduce, aside from boutique stuff, I typically only see Morton's and Diamond in the stores out here. Boycotting Cargill completely is a monumental task.
You know what is GOOD salt.. Costco himalayan pink salt. HOLY crap you will never go back after that. Unfortunately they dropped their tellicherry pepper. I'm still trying to find a replacement for it. But, I'm sure Cargill has its hands on Costco somehow too.