A few suggestions here.
A bunch of shops have blank maps or bundles of blank maps - this item is functionally pointless. You literally cannot use it for anything.
To copy a map you use mapping tools on an existing map. Using mapping tools on a blank map does nothing.
As such a "Bundle" of blank maps is extremely pointless.
My suggestions would be:
Remove Blank maps from shops, drops etc.
Remove "Bundles" of blank maps from shops, drops, etc.
Make mapping tools cheaper (they're currently 60-80 for a single map/map copy) or multi charge. (2-5 per mapping tool?)
Mapping is a cool function, but one thats practically never used because its super expensive for relatively little use.
All right, I admit I didn't understand how these work.
So the only thing that should be sold is the mapping tool?
Removing blank maps, let me know if there are any other out there in the wild you spot.