Libraries are gradually moving along the scam spectrum. They now have a single vendor that they are obligated to buy from at a set (high) price, and if the vendor doesn't have the book or item they can't buy it anywhere else. They also don't accept donated books for circulation, so even if you donated a new book they wouldn't put it on the shelf. This is based on my experience in several US states.
And agreed, most things in everyday society are scams.
I can't comment on how they get books and the nonsense that is involved, but at least no one expects you to buy anything and even late fees have been thrown out in favor or people just having access to knowledge. Giving people knowledge for free just because we can. What a concept
Agreed, not to mention they are a public place where you can relax without being pressured to spent money. But since we are in a post about scams it felt relevant to mention.