I remember Midwest express. Somehow I was on a Continental Flight from Milwaukee (maybe) to somewhere (was either ALB, DEN, or GJT, I can't remember which, more likely the first two?) and Continental had cancelled the flight and rebooked me on Midwest express. I'm thinking one of those little prop job planes. I was very pleasantly surprised with the "first class" experience. Real plates, silverware, meal, etc.
It was just the one time, plus I was in college so it was an unexpected treat.