The same is true for The Force Awakens, some live action Disney titles from the last few years, and almost the entire MCU collection (minus The Incredible Hulk).
For example, when searching for The Last Jedi, the Blu-ray, DVD, and 4K Ultra HD versions are all listed as “Exclusively for Prime Members” at Amazon’s site.
As spotted by Slate, non-Prime members are unable to order physical copies of movies such as Star Wars: The Last Jedi, Thor: Ragnarok, and Beauty and the Beast (three of the highest grossing movies of 2017).
Additionally, you cannot pre-order upcoming releases like Black Panther and A Wrinkle in Time on Amazon.