I feel like librarians everywhere are probably cringing as I tell everyone to buy books simply to rip out the pages.
I really do love books and feel bad about harming them. So another suggestion could be to purchase the books and then have copies made of what you want to use as artwork at your local copy store.
Here are a couple more suggestions for chic & some what cheap artwork:
Art Forms from the Ocean: $ 16.50
The Parrots: $67.49 (This book is on the higher end, but I flipped through it and it’s pretty amazing!)
The Roses: Used copies for 7.99
What other inexpensive ways do you use to get artwork for your home?