IIRC, part of the original sales pitch was replacing physical books, for whatever reason one might like to do that. I did it because I was doing a LOT of travel.
I haven't had a job that requires travel in a long time, so looking at it from that perspective, having my library also require some kind of additional device maintenance cycle or whatever really adds a layer of complexity I don't want to deal with, so depending on what options I have and what I'm buying, I'm finding myself these days purchasing physical books more frequently just to avoid the hassle for future me.
I haven't had a job that requires travel in a long time, so looking at it from that perspective, having my library also require some kind of additional device maintenance cycle or whatever really adds a layer of complexity I don't want to deal with, so depending on what options I have and what I'm buying, I'm finding myself these days purchasing physical books more frequently just to avoid the hassle for future me.