Clearly you have never bought anything published by Aniplex of America (not that I'd blame anyone for that). PERSONA5 the Animation Blu-ray is $300 (allegedly down from $400 retail) for 28 episodes.
https://www.rightstufanime.com/PERSONA5-the-Animation-Blu-ra...
After a quick look, Perdona5 seems to have at least 10 boxes. Not ridiculous since they tend to contain 2-3 episodes. But each is 6600 JPY. That's more than 600 dollars. Even in VOD, I've seen some website that make you pay 150 JpY per episode... And 4000JPY for the last one.
The US prices are high compared to France ones (we can get 100 episodes of Monogatari Séries for 90€, but that is a discount compared to the japanese price)
The unique part of Aniplex isn't its Japanese prices, but rather its attempt at exporting its Japanese pricing to the US. Compare that 28-episode $300 Aniplex of America release to something like the Sentai's Shirobako release (24 episodes), which allegedly retails for $90 and is available on Sentai's own store for $45. And that's not even counting the fact that Shirobako is the better anime of the two.
https://www.sentaifilmworks.com/collections/new-releases/pro...
> But each is 6600 JPY. That's more than 600 dollars.
That's about $63 USD, not $600.