In the “old days“ before Amazon, you would place a custom order at the book store (Not a second-hand book store) and it’d arrive a while later.
Around a year later I got a call that my book was in and I could go pick it up. When I arrived, a pristine, new, old-stock copy was waiting for me as if it were still 1991. I still have that book proudly displayed - both the joy of its contents and its discovery will accompany it for the rest of my life.
eBay, Amazon, Shop Goodwill have made this process immensely easier, but I still find joy and thrill in the random second hand store finds.
I was interested in a book that went for $120 on Amazon; a local shop ordered for me at $80 instead. It took about a week, so maybe a hair longer than Amazon. Oddly, I found the link directly from the publisher.