If scarcity were a factor, as it can be with print books; if resale value were a factor, as it can be with print books; if the marketplace set the final retail price, as is the case with print books; if authors weren???t interchangeable; if I could lend an ebook as often as I wanted to whomever I wanted, as freely as I can with print books; if quality control for ebooks equalled that of print book