Now, I'm the type of person who'd just as soon listen to Morphine as Primus, or Goldfinger as Buckethead. I think the real trick is just sounding honest with your music, if a monster solo is what feels right, then play it. If you think the song would be better off w/o out a solo, then do what's right for the song. People are going to listen to whatever they think they want to hear so in my mind it's best just to do what satisfies you (musicly speaking of course).