It looks more professional: Having a hardcover on your Amazon makes it look more like the bestsellers that often have one of each major book format (ebook, paperback, hardcover, audiobook).But even if they don’t read hardcovers, readers will be more attracted to your cheaper ebook when they see both a paperback and a hardcover that are much higher in price. If they like hardcovers, they might be attracted to you because you offer them. You have multiple options: Having a hardcover in addition to your ebook and paperback give your readers more options.There are three reasons why you might want to publish your hardcover book on Amazon. Why Should You Publish Hardcovers on Amazon? Step 1: Get Started in KDP Hardcover Creation.Why Should You Publish Hardcovers on Amazon?.