I have to admit, I am one of those people that collect things. I too have the closet of movies and CDs. Years ago I collected toys and my tools over the years have turned out to be quite the collection too.
Some if not most of the things around my house I am sure are barely worth anything, and the ones that are worth something - it's probably in sentimental value as you say.
I do so believe they need more second hand shops and not less though. But I digress until later.
Thanks for sharing. Glad to see I am not the only one with walls of media.