So true. 
I think included with the space, is the weight. My bookshelf has about 200 books and is well over 200kg/440lb as a result. It’s… quite the thing.
As we’re going to be moving soon, I’m looking to donate some of my older fiction books and then just not buy them any more. It’s a little saddening because books in general work better for me – they’re one of the ways I can practice mindfulness as the whole physical feel of the paper, turning the page, and so on, really helps to ground me in the moment.
But I’m realising that they make us moving a bit more difficult. And with this changing world, we’re not sure how often and where we’ll move in the future.