The library wants to see if the 3D printers are a worthwhile investment—not just if they are used (they could obviously already count the number of prints per week), but if having them draws people into the library or even just sparks curiosity of passersby. Someone proposed the library could have a volunteer with a tally counter by the 3D printers to count how many people stop by to look at them, and that would help inform the library.
Has the library stooped to the same level as the market?