Wasn't the 90s coming back in style just a few months ago? Well forget it, because now it's gone. I'd like to point out that it didn't even go this fast in the 90s... those lasted at least 10 years!
So if eveything comes back in style eventually it makes you scared to throw anything out. You go through your closet thinking 'hmm one of these days these velvet fuseaux will be in style' so you keep them and call them leggings. And you keep the polkadot bright pink jumpsuit too, and the matching furry headband, just in case.
So you end up either ready for whatever style comes into fashion or you will be a crazy hoarder... "It depends on how many cats you have"