Cast iron is like guns and knives. You can have more than you need but not as many as you want. Do a search for "cast iron cookware", "cast iron or dutch oven cooking" and you'll find much info. i started with a skillet, then a flat bottom dutch oven, then larger ones and I still am buying. Lost count. Mainly at thrift shops, yard sales. Don't forget to oil bottom. I use mineral oil as it doesn't get rancid.