Wired has a history of not understanding e-books. In September 2010 they published a short article by Rick Brodia on why the costs of e-books were high. He quoted a publishing industry source saying people would have a heart attack if they knew the costs of producing an e-book. The costs were digital warehousing, programmers to convert the books to various formats, extra legal support and copy protection software. He also stated the physical production of p-books could be as little as 15% of the cost.
The article is here:
http://www.wired.com/magazine/2010/0...estion_ebooks/