Not sure if this has been mentioned before, but If you publish your paperback book on KDP you can now request and buy your printed book at cost from your Bookshelf using the menu associated with your published paperback.
From what I have seen on this subject, the option is being rolled out slowly, and not everyone sees it. (I don't, for example.) And I believe it's only an author's proof copy, available only before publication, and it is watermarked on the cover as a proof copy, so it's not very useful except maybe to give to Mom.
Use CreateSpace. I buy my books in bulk for about $3.50 each, plus maybe fifty cents each for postage in a carton of ten. Amazon thought it could save money by phasing out CS and doing it all automagically on KDP, but after fourteen months they've barely got it creaking along. Patronize CS as long as it exists, and then switch to IngramSpark. Or start with Ingram right now.
(Don't trust KDP to publish a print edition. Don't trust CreateSpace to publish an ebook.)
On your bookshelf, hover on the ellipsis (beside your paperback version) (edit). The option to order author copies may or may not appear. It did on mine, so I ordered a few to see how the process worked.
According to the order page, I got them at printing cost + tax + shipping (free Prime shipping did not seem to apply), so they ended up about half of the $13 list price.
On my bookshelf, there is also the option for proof copies, which will have to wait until my next masterpiece. (If only)
Edited by: Dana Blankenship on Nov 11, 2017 6:50 AM