Amazon purchased all of the companies/sites that handled the used book market. You cannot escape the clutches of Amazon if you're a book nerd like me.

Eh, for me it's not about love, it's about no other retailers carrying what I want, at a price point I'll pay, with an easy return policy and easy checkout. I'm willing to put up with a lot of crap to find that, apparently.

To be clear, when I do use LLM for search, I don't limit it to one site.

Amazon's logistics are a cut above, both in terms of turnaround time and their drivers actually knowing how to deliver to my house.