I am not trying to defend Apple, but it may have to do with distribution rights in your country. Apple might not have the rights to sell it there. If they did, I'm sure they would. Apple is happy to take everyone's money.
As for getting entertainment from Illegal sources, I can't give my go ahead, but when I was in College, I did download a lot of songs and tv shows that were almost impossible to get legally at the time. But that was in 1999 when many old songs were not in print and before many Japanese shows/movies were sold outside of Japan.








