I apologize in advance for this question, but recently I rode into a an extremely large and nice RV park on my motorcycle for a cup of coffee and noticed everybody, it seemed, buying ice at the genera...
As most people have suggested, most of that ice was going into coolers.
And most of those customers were going for convenience rather than quality. When tent camping along a river in the desert we knew block ice is much more cost effective and lasts longer.
And for more than a weekend, we used dry ice same as the sailing group.