Exactly.
Naruto, Bleach and the like spoil anime. These shows aren't as bad as some may say. Actually, they are even acceptable -that is as long as you don't watch the English dubbed versions, which are also excessively censored. It's just that -because of these more popular, rather mediocre shows for the younger audience- people bias anime. There are also many fans of those shows who don't give other, much better animes a chance, which makes them even less liked. So, I wouldn't recommend such animes, especially if you haven't watched much anime yet. There are far superior animes out there. However, if you really like long animes of that type you should check out Fairy Tail. It's similar but done right.