The only time I wanted physical books obsolete was in college, because I hated carrying 10lb of textbooks in my bag. I've had a full bookshelf for a decade since then and can't imagine a world where I have thumb through a stupid Kindle menu to see my collection.
I have the reverse. I used to have around 2000 physical books. Every time I moved (and I moved a lot) I'd pack them all up into boxes, move those stupidly heavy boxes, unpack them all. I'd almost never read them. They were just expensive wallpaper. Now I have thousands of ebooks on my hard drive and I carry them all with me when I wander the planet.
