The trough of no value is the concept that most objects go through fluctuations in their real-world worth: the trough is that seemingly never-ending time between used/junk and antique/collectible.
Unfortunately the majority of my possessions fall into this category, including, it appears, those vintage Wharfedale speakers that I was looking for this past weekend (apparently I gave them away about 10 years ago—damn!).
via Link Banana