Book burning - just what are you ok with?

Are you ok with burning books?
What if it’s one copy in your own fireplace, not a ton of books in a huge bonfire?
What if it’s been “destroyed” – was in a flood/your child barfed on it/your cat peed on it?
What if there are tons of copies in circulation? What if you personally have another copy? What if it’s gone ebook (and now will never die, just like that picture of you doing tequila shots)?
What if it’s a Kindle/Nook/iPad/ereader? Are you ok with throwing it out?
What if you need it for kindling, and if you don’t start this fire, you’ll have no source of heat?

If you won’t burn them, will you throw them out?