It is one of the most interesting things.
i wonder how much of it has to do with: The baby boomer had parents out of the great depression, who saved everything. And so the baby boomers acquired lots and then, acquired more. Got storage sheds and filled them...

So, are these later generations not hording as much because they haven't had the store being empty feelings?

Still, most books are in pdf. most movies in mp4. Why keep the big bulky things around?
Why buy a Cuisinart when you chop things for one, only once a day?