Not booking the seat is a bit of a crap-shoot. I've also had cases on budget airlines where leaving it up to chance got me in the front of the plane, or in an

Not booking the seat is a bit of a crap-shoot. I've also had cases on budget airlines where leaving it up to chance got me in the front of the plane, or in an emergency exit row. I guess no one wanted to pay a premium for those seats, so they were the ones left for random assignment.