1. E-reader has a lot of books inside, while usual book has only 1 tale, or few stories
2.You need to charge e-reader, usual book doesn't need it
3. There is unusual feeling when you are reading paper book, while with e-reader - not
4. E-reader is smaller and more effective
5. You can trade your books with others, but not an e-reader
P.S e-reader - электронная книга