A trip to a bookstore, for a large section of the book-loving populace, is indeed something of value beyond just "curation" – the experience of browsing shelves, randomly finding or remembering something you wanted to read, seeing new releases on a table and judging the quality of the paper or the binding or appreciating the rag of the edges – none of this can be reproduced online. While you certainly don't have to appreciate them personally, many folks do.