Since you did not provide a link so folks like me can gauge the quality and know what you are asking about…
link
If I am reading it right (and correct me if I am wrong) the castings are in PEWTER, not a "white metal" alloy like many other miniatures are.
I love me some dwarfs… and for the quality of the sculpts shown, $5 USD ain't that bad. Granted, West Wind's "Dwarf Wars" are less; more in line with the $2 USD-$3 you are hoping for, but the WW sculpts are also not as dynamic, and are not in pewter. I think part of that premium is the metal itself (which I think is unneeded, but it's their KS.)
I'd be more upset that the SoBHF lots are in threes and it appear you cannot choose which three. I'd want to pick and choose.
They are on-par with Reaper-quality figures, and Reaper dwarf figs retail around $7 USD for the "white metal" alloy.
I think it is the "typical" interpretation that may have you spooked about the price – they are not typical.
I think it excessive to be in pewter and then charge extra for it, but they are nicer sculpts than what I would call "typical" at a price range of $2 USD-$3 per figure.
Again, that is if I am reading it correctly and they ARE in pewter.