Appeal is a strong word, and we have no way of affirming that, really. WHM is a super simple job that's popular for dungeon farming... since it's a healer it gets decent queue times and that means people might have a high ilvl main weapon just so that they can use the job to farm tomestones. SCH levels with SMN so those who like SMN and want to level it will automatically level SCH as well. Why not slap a high level book on the scholar if you get one just... in case... you might play it maybe? *shrug*. Anyway, neither I nor anyone here can know why all these people got a weapon on a healing class. But just because they do doesn't necessarily mean the job appeals to them to main.