Frankly, I fail to see the point in getting rid of ebooks. Paper books, obviously; they take up real, physical space you could use for other purposes. But the amount of space ebooks occupy is negligible; why bother?
I've accepted the fact that I never, ever read all or even most of my ebooks. So what? I still like to pick and choose among them for my next read. As all my books are meticulously tagged, categorized and organized in Calibre, it's not hard to find what I want, no matter the overall amount. Now if I had to rely on Amazon or Kobo for library management, perhaps I'd want to have as few books as possible, too.
Fortunately I don't have to.