Aldi has a six-piece cast-iron cook set for $69.99. It includes a 9-quart camp oven with a wire handle, 3-quart saucepan and wire base, 12-inch skillet, 2-burner BBQ hotplate, 43cm lid-lifting stick and a wooden chest to keep it all in. Holy shit it is heavy.
It's designed for use in open fires while camping, but honestly I love cast-iron cookware and find it very hard to buy cheaply. I get so much use out of my skillet, which Sandor gifted me as a cherished heirloom from Donald Street. It's the same pan in which my housemate Matt used to make his patented meal, 'skillet'.
If you'd like to know how to rejuvenate old, rusted cast-iron cookware, here's a good step-by-step guide.