If I do SDC, especially if I've been upgraded on my original flight, it means:
A) I travel a ton for work. And I finished my stuff early on this trip. All I want to do is go home early. I'll sit in the middle give me vodka and get me home!
2) I'm gonna miss my flight. And I'd rather accept that than get to the airport and panic.
3) the 6 am flight home was $99. The 2 pm was $259. If I couldn't get SDC, I was gonna live with 6 am. But I'm cheap. And if I have to fly in back, sometimes it's a choice.
Love Alaska!