Profession: Baker will probably never see use in a lot of campaigns. If you're running through Return to the Temple of Elemental Evil and you want your 5th-level fighter to say, "Man, I wish I were back in Albuquerque baking delicious pies," there's no need to have a single rank in Profession: Baker. If you never intend to actually roll the check to make a paltry amount of silver pieces in a week, what's the point in putting ranks in? Wave your hand, say, "He used to be a baker," and continue playing a game where 75% of the rules deal with fighting ugly things and taking their treasure.