If you pull some random guy off the street and ask what Elves, Dragons, or Wizards are like, you will likely get a number of varied answers.
However, if you ask a random person what a Dwarf is like, you'll probably get something along the lines of "a greedy, drunken little bastard who crouches in caves, pisses 160-proof brandy, and eats things out of his own beard."
Remember that Our Dwarves Are All The Same
. When it comes down to it, there's really only four things that dwarves really do:
1) Dig up everything
2) Hoard everything that can be dug up
3) Ferment and drink everything that can't be hoarded
4) Axe up everything else in an liquor-clouded rage
In any given medium of fiction, dwarves rarely deviate from the same basic principles. Dwarves have been done and re-done pretty much the exact same for quite a while now. Toady wasn't the first to capitalize on it, and he certainly won't be the last.