I guess this partially explains why making a movie or TV episode can cost millions / hundreds of millions of dollars :-/ Yes, Dothraki being an actual language is probably "better" than Leia speaking gibberish to Jabba, but to me it feels like it's way past the point of diminishing returns.
See also the articles about the level of detail in the costumes in Game of Thrones. There is a lot of attention to detail, probably including a fair bit that doesn't make it on camera, in big budget video/film productions. You could probably cut a lot of it and still have a "pretty good" final product. But being obsessive about detail rather than being content with good enough in all sorts of aspects of production, i…
As long as everything goes up this is fine.
When things start to get flat, money will dry up.