I searched the forums prior to posting to see if I could find an answer. What I found was that many people reported being very happy with ceramic coated headers, Sanderson in particular, some saying theirs are still like new 15+ years later.

The reason I didn't go with chrome was that I remember from my motorcycle days that they turned blue almost immediately, and I thought that looked worse than the ceramic semi-shine.

This car as always been stored indoors and under cover, and only driven in the rain three times (by accident) in the 25 years since my wife and I built it, so the rusting surprised me.