A problem I hate with earlier Metallica is that a lot of the songs are aimless. Like I'm listening to the song Justice For All now and I just want to go to sleep. I prefer melodic Metallica (From Whom The Bell Tolls, Fade To Black, Trapped Under Ice) rather than the let's just play a bunch of random guitar riffs Metallica. Then again, that's a big problem I have with metal in general, lack of song structure in many bands' music. If I want to listen to lack of structure I stick to jazz. So in that way, I welcome commercial metal. I see nothing wrong with commercial metal at all. It sounds good.