I'm a huge ebook advocate, and I just bought two books in paper --
The Word Museum: The Most Remarkable English Words Ever Forgotten and
Forgotten English: A Merry Guide to Antiquated Words, Packed with History, Fun Facts, Literary Excerpts, and Charming Drawings. They were $0.01 + $3.99 shipping each. The first one is $14 for the Kindle version ($2 more than paper!), and the second isn't available as an ebook.
Hopefully the print won't be too small to read.