Home canning has changed greatly over the years. Food science has led us to safer canning techniques and better quality canned goods.
Home canning can be a cost-saving way to preserve good tasting food. If you have the time, canning homegrown food may save you half the cost of retail canned goods.
Bastin, Sandra; Daly-Koziel, Kathy; Buckner, Elizabeth; and Walters, Jackie, "Canning for Food Preservation" (2007). Family and Consumer Sciences Publications. 56.