This entire thread is making me mad. Classes are meant to be a base that you require in order to advance. This is exactly the same thing that they use in many other MMOs except it's dressed differently. Think of it like this :

- If you're in the army or working somewhere and you're promoted to a higher rank, are you going to go back to your old position? NO, you're going to utilize the shit you learned in your last position to aid you while you're simultaneously able to do more advanced work.

- If you're taking a math class in school and do so well that you're in math R next year, are you going to claim that the old math class you took was boring and useless? NO, you're going to utilize the shit you learned in that math class to help you in the new more advanced class.

Jobs are in the game as a sort of progression just like any other progression system in other games. It's like in another game when you learn a new skill that is far better than one of your current skills in every way. That old skill wasn't useless, there's just a better form of it that symbolizes your character advancing in the world. I hate this thread you guys just aren't getting it.