A neighbour of mine on hearing I was interested in book scanning asked would I scan a book he had borrowed, which was a local history thesis. The book contained 9 fold out maps. Anyway I scanned the book for him but suggested he get the maps copied in a local shop which specializes in architectural drawings etc. They scanned the maps gave him 4 hard copies of each and also converted them to pdf and gave him a cd with the scanned images. They charged him 105 euro or $144.
I scanned the book-175 pages for free.
There is an income in this project somewhere.
Having looked at the pdf of the maps I could have done it myself.