That always surprises me a little. Yes, absolutely, the experience is shitty and the next day is almost as bad. But, rather than lose a day? That seems like a good trade.
I'll often have to go to stuff on the West coast for work, and usually want to get back as soon as it is over. That means flying at night and being back at my desk or home with my family the next morning, or staying out there another night and losing that day. I'll happy suffer through the overnight flight every time.