It’s called regulatory capture. They have a monopoly here, so they can just raise their prices until the pain threshold starts diminishing their returns noticeably then dial it back a notch.
49 PLN is about 12 EUR\USD (and it's been like this since 2021 I believe). I am losing my mind because I can't figure this out. It's the same thing - shipping, Prime Gaming, Prime Video, free Twitch sub?
They collected a lot of data and stats, like the catalogue sizes of Prime Video around the world and it varies massively. So that's part of the answer. And Polish is mostly crap and midocrity, and few good older shows. Lower Decks last season is missing, this kind of crap happened to me number of times.
There are varying levels of quality of service in different countries due to shipping infrastructure, partnerships, content restrictions, etc, and I'd say that ties into the cost.