Earlier quoted context omitted.
Easier to send them through a duplex scanner (or put them in a flatbed one if they are fragile). Cheaper than buying the automated ones with the page turning robot arm. I have done it at home for my books since the mid-00s.
Do you purchase every book two times, or do you have a home devoid of physical books that you enjoy? Genuinely curious
I have books but would have 5x as many if I could not capture them digitally. (When I go to move or go through a purge, some of the books I scanned do go to a used book store.)
So I scan in part to keep my physical book-footprint smaller, but also my scans all get cleaned up and uploaded to archive.org. Mainly I scan young-adult science books from the 50's and 60's (since they were so influential and have all but disappeared except on eBay and the like).