It has its place. In my opinion, there are two sides to nu-metal, the metal and the non-metal side. For example, in my opinion, System Of A Down is metal and Linkin Park is not. I think that it is overrated, however, I feel that it is unfair to say that all nu-metal bands aren't "real" metal. At the end of the day, it doesn't matter what genre it is the music is either good or bad.