While I would say that there is almost certainly something more going on psychologically than me simply just buying old video games, I don't think I'm a hoarder in a technical sense. I do, however, "hoard" duplicates of the original NES controller (7 with one of their pcbs stuffed into the shell of a Famicom controller) as well as the dogbone controller (5) in addition to picking up an extra NES when the price is right (I have three toasters and one top loader). The reason is practical, I think (justify). Old electronics can break. It happens- tragically sometimes. Why not have some extra lying around just in case?

Yeah... perhaps I'm a borderline hoarder/collector.