Medium rare here, too, because it just tastes better. There's another reason also - 40 years ago my brother worked at a place called Chuck's Steak House. He told me that if two orders of filet come to the kitchen, the rarer will be larger so that they can cook for the same amount of time and be served together. I don't know if that's true any more but it makes sense and stuck with me.
Please don't go shopping on Thanksgiving.