I've participated in twenty-four separate events in the last two years, and seeing the photos from each of them on one webpage made one thing very clear. I really do have my favorite running shirts.
Action 230 - Dress For Success. I have two long-sleeved Marine Corps shirts, one black and one red. I have an orange sleeveless shirt. And I have a white short-sleeve shirt. And judging by the photos of me at the events, these are the only shirts I like to wear when I compete.
I don't think that's a bad thing. One, these shirts feel comfortable over hours of running. Two, they fit well and look good on me. And three, they have been part of my training and running since the beginning, and choosing them for a race is automatic.
I have been successful wearing them, so I will continue to do so. And when the shirts are finally worn out and no longer serviceable, I'll find others. But until then, you can expect to see them for many events to come.