So...I went to turn in a bunch of aluminum, and the scrap yard guy pulled my harddrive casings out and tried to pay me 20 cents a pound for them, because they are die cast, not cast aluminum.

Anyone know what they are, and what I should be getting them paid out as? As far as I knew, cast aluminum is poured into a mold, while diecast aluminum is injected into a mold.....not understanding why one would be worth less......