Yes, there's a strange habit with things we can twiddle and the surface area for twiddling physical books is much more limited and less engaging than with electronic devices.
There's something to dedicated physical entities being single purpose and dead end that allows them to serve you in a very focused manner. Things with more bells and whistles, knobs and pulls will simply draw you into their twiddling even when it serves no purpose. It's like working with these things creates an itch that we need to scratch and it is distracting even if the recovery for focus for those things is minimal, it all adds up and gets you out of the focus state.
There's something to dedicated physical entities being single purpose and dead end that allows them to serve you in a very focused manner. Things with more bells and whistles, knobs and pulls will simply draw you into their twiddling even when it serves no purpose. It's like working with these things creates an itch that we need to scratch and it is distracting even if the recovery for focus for those things is minimal, it all adds up and gets you out of the focus state.