You only get three dwarves for a base, whose special ability is an extra victory token for mine tiles, and that this ability is retained when in decline.
This seems like a rip off! There are other races (like humans) who get an extra VP for farms, and they get almost twice as many from memory. The fact that you get to keep them when in decline doesn't especially help, as they're much easier to kill in decline.
So is there a reason why dwarves are apparently treated as powerful? What strategy should one use to utilise them?