I get what you mean, I have never gone back to conjurer since I got to level 30 and would never think of doing so, but I don't really see it as a fault in the system. They're like the base from which we build or jobs upon, so there's no reason to go back to them, but it's not like they're thrown away like an old piece of equipment either. I guess it'd made more sense if we had more than one job per class.
I can see why gameplay-wise it's useless but the transition from class to job (getting a new name, a shiny stone to carry around, new storyline/mentor, additional skills) helps break up the monoty of leveling a class. I would welcome more variety in cross-class and the like. Radacci's suggestion was cool, I personally love the way FFTA handles cross-class skills, but whatever they wanna do, I hope they keep the core class/job concept we have now. That's all I'm trying to say.
