I used to LOVE salt - the saltier the better. Then I started taking better care of myself and reading label - and that's when I realized just how much there was in everything... Only a 10th of your intake comes from the shaker.
An entry consisting of a bowl of soup w/ 2 or 3 crackers and a tiny bit of butter and you've exceeded your suggested daily intake. And I don't know about you, but I'm a big guy and I need a whole lot more than soup and crackers for my meal... Incidentally, I remember that, at my parents when we'd have soup like Campbell's or such, we'd actually ADD salt to it.
By the way - if you can't cook your own, don't trust the low sodium labels. The aforementioned Campbell has been sued over that.
The good thing is that when you start reducing your intake, you quickly recover a proper sense of taste and it doesn't take 10th as much.