and the kid analogy works fine dont try to nit pick it i am not talking about money, i am am refering to the idea that you got what you wanted and you want more just as the kid go his icecream and now wants a different flavour.
and as for preserveing something again dont take the example too literally, cause its the idea i am talking about.and your example points directly at that, they are making a 3d image of the book to preserve the content of the book, but they are still infact keepin the book and all its flaws together, there is only one copy of it and so it remains in a chamber where it can be preserved, they are not however taking the book re-writing everything in it. even in the 3D images the flaws are still there, thats why they are making the 3D image rather then a 2D image, to preserve everything.