This was the topic of a recent thread on TeleRead. The bottom line is something that will permeate many areas of our lives as budgets are cut in the ongoing world economic crisis and jobs are lost to technological (OCR) shortcuts. Proofreaders are icing on the profit cake and expendable unless or until readers vote with their wallets. If they can sell a book with errors, why on earth pay someone to eliminate them unless it impacts sales? There is no pride in product for profit without proofing. One can also wonder if publishers are trying to make a case against eBooks in selling such sloppy products.
http://www.teleread.com/ebooks/why-e...ed-with-typos/