Here's something most home cooks never think to ask: iron is a reactive metal, and acidic ingredients — tomato sauce, wine reductions, citrus, vinegar-based marinades — can react with a cast iron surface during cooking. Some of that iron can transfer into the food itself, which can affect both taste and how much iron you're actually consuming without realizing it. Most people simply learn to avoid cooking tomato-based dishes in cast iron altogether, which quietly limits what you can make in the pan you paid good money for.
Titanium is the most chemically inert metal used in cookware — it doesn't react with acid, salt, or citrus at all. That means a proper tomato sauce, a wine reduction, or a lemon-butter pan sauce can all be made safely in the same pan you use for everything else, with nothing unexpected ending up in the food.