Also well seasoned cast iron is dishwasher safe, there is very little you can do to kill a cast iron pan.

If you don't mind waiting half an hour for it to heat up. (semi-/s)

There are plenty of times where you do not need or want the heat capacity of cast iron, and it's actually a 'con' for the dish. Never mind that you don't really want to cook anything that's acidic (e.g., tomatoes) in it.

Certainly having cast iron in your tool box isn't a bad idea, but stainless steal has all sorts of other advantages. And if you want something less sticky but still responsive, there's also carbon steal.