^ E-books are generally less expensive than their print counterparts, but they can still be quite pricey. I was looking at Otto Jespersen's Language: Its Nature, Development and Origin yesterday. There's a hardcover reissue from 2006, which has a list price of $220 and which Amazon is selling for $209. The Kindle edition is $168.
http://www.amazon.com/Otto-Jespersen-La ... 415402476/
The book was originally published in 1922 and is therefore in the public domain. And yes, there's a completely free and legal e-book on Google Books:
http://books.google.com/books?id=z7NFAQAAIAAJ
I like real books, though, so I bought a used copy of the original 1922 hardcover at a local independent bookstore for $12.