I feel that cast iron pans are overrated. Stainless steel is easier to clean, lets you build fond, lets you cook acidic pan sauces, and are lighter so you can be more aggressive about pan flipping. The only advantage cast iron has is heat retention and there are few cases where that's useful (like deep frying for example, or baking bread). Iron is actually a relatively poor conductor of heat also and a good tri-ply pan will heat up faster.

Cast iron dutch ovens are another story because you will frequently use them in ovens where the heat retention properties are useful.