Elemental Potatoes were incredibly useful.
For Ron, many things in daily life could be made simpler and more convenient through the "Elemental Potato + magic array" model.
For instance, the soundproofing array, sound-recording array, and amplification array Ron had previously used in the Magic Battle Hall's arena matches.
All three could be widely applied in many everyday situations.
However, the scarcity of Elemental Stones and various magical materials had previously made such magic arrays extremely costly. Compared with their functions, their cost-effectiveness was simply too low.
Thus, most nobles naturally preferred to directly hire a mage to handle such matters.
As for ordinary people, they did not even need to think about it.
At the root of it all, the problem was still one of price.
Given products with the same function, people would naturally prefer whichever one was cheaper.
Even wealthy nobles would shy away from magic arrays that needed money constantly burned to keep them running.
Unless they possessed irreplaceable functions, such as large-scale spatial teleportation arrays or large-scale elemental arrays.
Either mages of the relevant specialization were especially scarce, making it less economical to keep a mage than to build a magic array.
Or only a magic array could achieve that function, and the function itself was extremely important.
As for magic arrays that could only solve ordinary problems, they would eventually be eliminated because of their price.
Take the Water Condenser Ilya had shown Ron before.
Without Elemental Potatoes, one Elemental Stone could only be converted into roughly half a bucket of water.
And a water-element Elemental Stone cost an average of ten gold coins each.
Even in places where water was scarce, ten gold coins could buy who knew how many buckets of water.
Who would stupidly spend money on water-element Elemental Stones, only to