Alright, I think I've pinpointed what makes Dollamancy specifically different from other magic items.
(incidentally there will be a lot of erfworld speculation on this thread from me so I can bounce it off my players before implementing it)
Dollamancy is, as Ace puts it, for action - it involves creating things that people can equip, or ride, use in combat somehow. Whereas the other things we've seen, like the Eyebooks - they are not equipped or really involved in combat in any way, which is why dollamancy was not needed.
Incidentally this also fits into the noted theme of caster purposes being based on their discipline name - e.g. turnamancers manipulate turns, and can turn units.
Dollamancers make dolls, and they can "doll you up" for battle.
UNLESS someone like you cares a whole awful lot, nothing is going to get better. It's not.