Also, it may not be the money. It could also be a desire to rest, especially if it was a CO crew. I had a CO crew on a transcon get really excited when we took an ATC delay and vectored close to arrival. They were hoping to get out of their next flight (another transcon) and sleep in a hotel bed.
yeah i think those skywest crews do ~5day tours so that could definitely be it - though its pretty annoying as a passenger that you'd taxi out to the runway for 20 min so that they could close the door for a departure and then timeout and taxi back...