No matter which battery powered you buy the batteries will eventually die and the tool will be useless even though it may still work. The cost of new batteries is usually more than a new tool. Mine have always been corded and a really food quality one like a Bosch could last you a lifetime. I gave my son a DeWalt for Christmas and feels really good but he hasn't let me use it yet. However, dragging the cord around is definitely a pain in the butt.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.