To add something else:

Maybe also in addition to a library economy (which is used to maintain things for the public), we could have a salvage economy (for recycling older things) that feeds into that. I remember one time hearing a presentation about this building called the Kendeda Building, and during its construction, instead of throwing the materials away, the salvaged usable building materials and used those to build the new building, preventing some yseful things from going to the landfill. I think a salvage economy could be useful to the library economy because older unused things can still repurposed for use.