If you are in a union sometimes they offer them. I bought one last year through Plum Benefits. Working Advantage had them too. I did have to verify my work email.
The sams club deal was an accident. They pulled those down within three days after people caught on. Sams Club just didn't raise the price on their end when Disney raised theirs. I got passes for everyone at the 'discounted' price though haha. I don't have to activate them till 2030. Sitting on them while my kids go through some annoying ages (terrible twos and fearsome fours).