It's a tough thing, but my guess is that most of the people still reading and voting have at least one of their stories still in the running somewhere.
I've got a job, a long commute, a relationship with my wife and kids, a calf born yesterday, a milking machine to fix, two sheep due to give birth any time, fences to fix, a loom to warp, and etc., and if I didn't have both of my stories still in the running, I might have been tempted to drop out because there's only so much that you can juggle before things start to drop.
Thank God the snow's over and we don't have to feed hay anymore.
Anyway, having said that, I consider this contest as part of my writing education along with podcasts, books, my writers group, and life, so I probably would have stayed anyway. There's good stuff to be learned here. I'm just kind of tired.