I'm not a Death or Pantera fanboy by any means, but i have to confess i like the sound of a solid state growl. There's something distinctive in there that's completely lacking in the more recent 8-string-through-6505 generation of metal music.
I've also gathered they're cheaper and theoretically lower maintenance.
But am i missing something else? Or are valves mostly just popular for their clearer and more melodic sound?
And yes, i have the experience of a 4-year-old bassist.