If only the hardback is available, the ebook is the hardback price. If a paperback edition is available, the ebook is the paperback price.
Publishers frequently offer texts in several formats for different ebook hardware.
Many publishers offer texts through download or on floppy. Downloading the book usually saves at least one dollar. On-line Books Page links to over 11,000 free books. However, free software can convert these formats for display by the ebook hardware above. Most texts are old classics in the public domain, but some are new.