One of these 737-800 planes was used the day after the Olympics (a Monday) to get people out of SLC. Delta had three SLC-CVG flights scheduled in a 5 minute window (10:10 am, 10:15 am, and 10:15 am).
Delta managed to cancell my flight the previous day (along with my upgraded first class seat), and then stuck me on on "all coach" ride to CVG (middle seat!).
Yes, I was slightly annoyed with Delta that day!