For those wanting to get into cast iron cookware but can't afford paying for vintage pieces at antique store prices or even the medium priced Lodge offerings, those offered by the bigger box stores like Walmart, Bass Pro, and Cabela's usually carry their own House Brand cast iron at really affordable prices, dirt cheap if you find them on sale.
Be aware, most any off brand cast iron cookware you find in those venues will be made in China or other Asian country, but, given the simple formula and casting methods for cast iron it's probably going to cook as well and be as safe as American or European made cookware.
One good place to look for discount deals on cast iron is Home Goods stores, Home Goods is a chain of stores owned by TJ Max as an outlet for selling overstocks at discount prices, most of my home kitchen cookware, bakeware, and high end cutlery come from Home Goods, back about ten years ago I bought a couple of La Cruesett pieces there for about $30.00 each marked down from $150.00 each, a few weeks later I went back to pick up another Enamel coated Dutch oven and they were all sold out, but they had a bunch of others made in China under the name brand of Authentic Kitchen, the prices ranged from $19.00 for the three quart to $39.00 for the eight quart oven, I took a chance and purchased three different sizes (small, med, and large) for a total of under $90.00, name brand ovens at street prices would have easily run $500.00 or more for the same sizes, they've been just as good as the more expensive brands.
About the only complaints I've had with Chinese made cast iron cookware is that most of their skillets and cook pots are allot thicker than American and European cast iron cookware and therefore heavier, but the casting finish is usually on a par with Lodge cast iron.
One exceptional piece that I also bought from Home Goods is a Cuisinart brand 12"x12" ribbed grill pan that sells for $139.00 at JC Penny, it's enamel coated inside and out, it's been my dedicated grill pan for all of my steaks, burgers, chops, and chicken for allot of years, I paid about $25.00 for it, I later found out that Cuisinart cast iron cookware is made in China.
*Note, like everything else, when buying cast iron cookware you have to know what to look for and be choosy, if it looks like poor casting pass it by, but if it looks like good quality it usually will be.