One of my kids came home and announced there was going to be a D&D club at school.
The next day: D&D club is on hold, because the founder's parents didn't want him bringing $99 worth of books to school and losing them or getting them destroyed.
Three days later: I donate my 2014 core books, the dungeon-centric screen and all the dice sets that my family doesn't want (about six complete sets) to the club.*
Everyone wins!
(* I know, I know, people with a lot more storage space who don't anticipate moving at least twice more in the next five years would keep them as part of their enormous RPG library. I don't have that kind of space and am anticipating moving twice in the next five years.)