Most players just have their inner hoarder come out in FO4 a bit.
Those who are admitted self hoarders are faced with a gigantic candy land, but always faced with carry limits no matter how large. At some point, hoarding exceeds carry weight.
The perk for fast travel while encumbered is essential for a hoarder - the stack of plungers just had to bring back, maybe not so essential...but it could be. Maybe. Better take it, just to be sure.