You see there are all kinds of libraries, community public libraries, school libraries, law libraries, ancient libraries with thousands of old books, libraries in corporations. Plus librariese do a ton of stuff besides books, they have movies, music, lecture halls, events in rooms, they sponser comicons, they have reference books, non fiction fiction, childrens, childesns story hours, they have friends of the library used book days to raise money, they have government grants they have artifacts displayed, deal with censor ship there is so much that a library does with archives computers, micofische, periodicals, wow so much to running a library not only that but librarians also help patrons with research.  

You see no one has done a library management sim and two point likes under represented simulators, hospital, campuses.  Things like theme parks and zoos are done elsewhere, but no one has done a library yet.  There is so much to a library it would be a fun management game that can be very quirky.

also they have games and library cats winks.