It also costs a significant amount to convert printed works to digital form, for either e-book or quality republishing. I suppose scan-to-file is okay for some things, but I won’t pay much for such books in either format, not when most such are in free PDF libraries. Scanning old typeset material is not often done well, either, and if the basic job isn’t done right, no amount of straightening, cleanup, contrast tweaking etc. really makes the pages readable in the sense that a clean page is readable.
I’m happy to work through scanned copies of rare and specialized works and I have a PDF library of over 300 works by a Victorian-era figure; just having the text in any form is priceless, given that some of these books only exist in the dozens. But if you’re talking about books meant to be read and enjoyed and used… truly digital text or re-typeset is the only acceptable form, IMVHO.
Yes, there’s OCR. We’ve all read OCRed works and their quaint e#orz and miss steaks. Without careful proofreading and editing, OCR, especially of older material and stuff that can’t be completely flat-scanned (such as rare and valuable books that can only be opened so far) is only a first step.
I had a friend, a not-too-unfamous
genre author, who wanted to bring out new editions of an out of print trilogy. We almost had a deal, but my end of it was to digitize the books to acceptably-proofed levels so I could reissue them in e-book and paper… and then hand over the digital files. Of about 900 paperback pages total. It was going to take around six months of my time or around $3k for a service (after which I’d have to proof it again anyway)… meaning there would little profit. Except for him and his agent, who could then make a beneficial deal with a bigger publisher.
So I said no, and still re-read the ratty paperback originals from time to time. I see someone finally did the job, and both e-book and hard copy are on Amazon.
So if a book is truly out of print, it’s most likely because the rights and permissions aren’t clear, the author or estate isn’t accommodating, and there’s a huge cost hump to get over to bring it back to print.