Is Apple TV (subscription) a rip off in both the US & Canada?

I only pay ¥900 ($5.60 / C$7.90) per month for (Japanese) Apple TV while the same subscription is literally $12.99 for Americans and C$17.99 for Canadians per month, like WTF? Regional pricing is also taken into account despite using the exact same streaming service, why is that? There are differences though, mainly in the shows available (different countries share their exclusives that don't exist in the other). Why does it cost "less" in Japan though...