I've got a compile of the early albums and thought they were ok. Will check it out as it's got a couple of trusted mentions there.
After initially thinking the Dio worship was cool I really fell out of love with the vocals of NPJ - pretty much became a caricature to me.
I hear ya. I'm still only a couple of albums in to the back catalog, and it is sounding quite samey. If it's simply 8 albums that are variations on a theme (ie, ARP and/or Harem Scarem syndrome), then I'll likely just stick with the new release and enjoy it on it's own.
Though, that raspy/gargly sound isn't quite what I'd relate to Dio. More like UDO/Tornillo? I'm not a huge Accept fan, so I might be off on that comparison.