Hunter x Hunter does better than Bleach because it is awesome. As for Inuyasha, you have to remember that it was a huge international hit. Not bringing it back would have been insane from a financial standpoint. Bleach never approached that level of popularity, although internationally it was more popular than One Piece or Naruto and was the least butchered of the American translations, I don't know if financially that is enough to save it since international interest in Japanese comics/animation has been steadily falling over the past several years.