I've been to restaurants that have pictures of every dish on the menu. Those menus end up being the size of large books, and in one case the menu was delivered

I've been to restaurants that have pictures of every dish on the menu. Those menus end up being the size of large books, and in one case the menu was delivered in the form of a three ring binder with laminated pages to flip through. Good menu layout and design costs money, laying out 30 or so pages with full pictures of every dish, and then printing a bunch of those up, is not reasonable. Meanwhile online menus can be searched and filtered through. That said I think that online menus are generally sub-par compared to paper, mostly because paper is better than a screen for most things, for people who don't know a given cuisine, pictures are essential.