If space was ultimated I’d be all about buying physical books, but it’s not, so I tend to buy physical if I’m buying a reference book or something that I want to show off…
Everything else is an ebook, although I do sometimes decided to upgrade the ebook version of a book I adore to the physical, for the aforementioned purpose of showing it off.
As for Audiobooks, I’ve never really given them a shot, which is a bit strange given I’m a massive fan of Podcast.
One wall in the living room is just books. The other books are in the studio or in boxes in the basement or attic. And they have been read, some of them several times over. Only exceptions are my wifes’ professional books which I haven’t read, and my professional ones that she has not read…
And of course there are ebooks, too. Mostly the Project Gutenberg ones, but also bought ones. Or ones I got as reference work for contributing or editing.