"It came to me on the wings of sleep." Can't remember where I got that from but It's eminently suitable. I saw the future as clear as daylight. My premise is this:
One day in the not too distant future I truly believe you will be able to peruse books on line at home or in a book store. When you come across the book there will be two options open to you.
1/ Download your book to your device as we do today. Or
2/ Download your choice and your specification, hardback, paperback, etc., to a printing machine and, for a small charge, take your freshly minted book home with you in less time than it takes to make a cup of tea perhaps?
An idea I feel is worth consideration. With all the ranting and ravings about the crap on Smashwords, Amazon KIndle, etc. Might it be a good idea if in the near future books had added alongside their description, a declaration that the product had been/had not been professionally edited. This would save a lot of angst on the customer's part about the quality of the purchase they were about to make.