cheap salt vs expensive

[honkey sauce]

I think when you spend 80$ for a bucket of salt all your paying for is a few extra Tbls of carbonates,calcium, mag and str.If you look at most brands of each marine and reef salts thats all the difference there is.So I ve been adding my own 4 additives to cheap salts for a total of 35$ a pail.

do you think my method is at par with expensive salts or am I missing something about 80$ salt