[blincoln]

In my experience, the Amazon search feature is very unpredictable and confusing.

E.g. if I search for "<film or television series> blu ray" (no quotes), I will usually get only listings for foreign imports of the title sold by third parties, even when Amazon carries the item. If I want to get the US release in my search results, I have to leave out the "blu ray" string, which makes the search results less useful if Amazon carries a lot of non-BD versions of the title and I am looking for it specifically in that format.

Some items will be hidden when searching from Amazon itself, but can be ordered by doing the same search on DuckDuckGo or Google and finding a direct link to the product page.

TLDR: it's difficult to do a fair comparison between users' experiences, because their search feature (like so many sites - I'm looking at you, Etsy!) is completely broken.