[riffraff]

FWIW, I've gotten dozens of used books from amazon UK in the 2£ range, which is higher but still in the destroyable-without-drama range.

I'd expect your local amazon has the same kind of resellers.

[WalterBright]

The minimum price for a physical book from Amazon is $4.00 plus sales tax. ($.01 for the book, $3.99 shipping)