Instead I'm starting to see it as a "personal library".
A library in the sense that most of the books in there, I have not read yet.
And Personal in the sense that I have selected all the books, so each has a high likelihood of being of interest to me.
What makes this possible is first and foremost that the books take up zero space. A Kindle or iPad with 1004 books is exactly as big and heavy (or small and light) as the same device with only 4 books.
And secondarily, most books I get are way more affordable than their dead-tree counterparts. And of course there's over a million classics and others to get for free. So now I'm getting a hundred books for a price I'd pay for maybe twenty or thirty books in the past. And I don't have to keep buying new cherry wood bookshelves and keep getting rid of books for space reasons.
It used to be that only the rich had a personal library. Now its available to any middle-class person.