I am currently reading one of D. H. Lawrence’s early travel books, Sea and Sardinia. the edition I am reading is a Penguin paperback edition. The Penguin edition was published in 1944, during the heart of World War II. Because of wartime shortages, I assume, nothing was as it should be, and the paper stock was bound to yellow and dry out fairly quickly. In addition, the cover has completely come off the book.
You can find this book for sale at www.abebooks.com for as little as $1.50. Of course, that copy appears to be in much better shape than mine.
You can also by a copy of Sea and Sardinia on abebooks for $850.00. It is a hardback, and a first edition.
So, two copies of the same book sell for a difference in price of $848.50.
And the text is the same. And the reading pleasure is probably the same, as well.
Go figure.