Digital Books Are Generally More Affordable
If you go to Amazon right now, you’ll find that most physical books tend to be more expensive than digital ones.
This is because, with a physical book, you need to deal with shipping and printing costs. Digital books don’t have any of that, so you tend to find them at a cheaper price.
Additionally, when books are on sale, digital books tend to have a bigger discount. You can find amazing digital books for $0.99, whereas their physical counterpart will only go down in price a few dollars. You’re also far more likely to find digital books available for free from places like Project Gutenberg.