I know what you mean. When the series first started, you thought that sealing the Kyuubi into a person was the only way they could possibly stop it, and it had to go into a baby who was pure, without evil, so the Kyuubi couldn't corrupt it. And you thought that the 4th made up some crazy technique to do it. But it turns out everyone knows that technique and all the other villagers are doing it.

Also, before the whole kyuubi thing...the leaf just didn't have a tailed beast or something? Were they just the laughing stocks of all the other big villagers? It doesn't seem that way, so what was the kyuubi doing before?

And wasn't it a natural disaster? What were all the other ones, then? Kishi probably didn't have the tailed beasts planned out all the way when he started this series.