I remember watching the prices of the g-birds when s5a came out thinking they were too expensive for me, but i did end up buying the zeraora v when s6 came out because of how insane the texture looked on top of the nice art. I remember thinking every time that prices would drop when the english version came out and every time being disappointed until eventually realizing that they are not tied to each other.
it never occurred to me at that time to consider other asian languages. tbh, it felt “taboo” to consider anything that isn’t japanese if i wanted a card. it took a while for me to get over the fact that the characters of the writing were different.
If i had to guess, most people are still in that place where it’s either english or japanese. everything else is just for suckers who can’t afford the “main” languages.