It will be very difficult to debate against the importance of salt in any culinary cooking. It is very basic, but very essential. Maybe because it is so basic (just NaCl) that it does not really matter the source is.
So in your experience and your opinion, do you prefer a particular salt brand? Do you think it matters who or where you buy your salt from? If so, what is your favor brand of salt? Or do you just buy the cheapest ones on the shelves?