Much of the stuff we own, or which we even value, has minimal monetary value or might even cost money to get rid of. It might be useful to us or of sentimental value or other sorts of personal value (that is true value, emotional value I suppose) but of no value to anybody else. Talking about meaning.
Monetary value is less than you think, and the effort to unload a possession of any monetary value is large. Just try getting rid of an over-aged piano. Pianos have life spans, unlike violins.
American Scholar's podcast on The Global Garage Sale. The interviewer is a bit of a nut, but the guy is interesting. They are both sort-of anti-consumption with a minimalist ethic. For the "environment," of course...Lots of our "good" stuff ends up in landfills despire our virtuous intentions.
I do know some people for whom the only value of anything is monetary.