The biggest differences between cooking with dry and canned beans is the convenience factor and price. You can buy a a pound of dry beans for anywhere from $.50-$2. Each pound makes approximately 6 cups of beans, or the equivalent of 3 cans. You can buy a can of beans usually for $.50-$1.50. As you can see, it is a lot cheaper to buy dry beans than canned beans. But dry beans require time (and generally speaking, a lot of it) to make recipe ready. Dry beans also take a lot less space to store.
I like to have both canned and dry beans on hand. Canned simply for the convenience factor.
Coming Up: Cooking dry beans