Yep. And forget about buying meat from Wal-Mart for the savings. You're going to have to find a butcher who gets food that isn't injected with salt water.
They would just go the way of the McLean Deluxe from McDonalds (90's kids remember that one?) A diet big-mac that bombed hard. "The McLean Deluxe was marketed as a healthy alternative to McDonald's regular menu. It was released in the United States in 1991. It had a reduced fat content compared to other McDonald's hamburgers. This was achieved through use of 91% lean beef and the addition of carrageenan to the meat. The McLean Deluxe was originally designed as a replacement of the McDLT. Like the McDLT, and despite performing well in taste-tests, it did not sell well and was dropped from the menu in 1994." http://en.wikipedia.org/wiki/McDonald's_Deluxe_line
2 things you can do to lower your sodium. First, drink more water. Second, eat more potassium. If you have a banana a day, that'll help a lot.
Salt should be moderated the same way anything else should be but it's hardly evil. It's mainly guilty by association because it's so rampant in foods high in saturated and transfat and also processed foods that have little to no nutritional value. If you eat a lot of those things you're going to have health and weight problems regardless of the sodium levels. Best advice is stuff you've already read, eat more natural products. As far as weight loss, it has no impact at all on fat gain, from a purely physical standpoint. Salt can cause water retention if you have a significant increase in consumption but water weight isn't body fat. If anyone is salt sensitive or has a strong bond with salt in their foods then cutting back on sodium will of course lead to cutting back on eating in general. But dropping the calories is what will cause the weight loss not the scaling back of sodium.
The issue with sodium isnt with weight...its blood pressure. Cutting back on sodium lowers blood pressure and takes a load off your heart. I dont think anyone tries to lose weight by cutting back sodium, that makes no sense.