said operator, when you're young and starry eyed will give you quality F/O time, flog you to death perhaps....but you're at the right end of your career to be flogged....and you get into the system of bigger, shinier stuff whilst not waiting to be a librarian which, whilst all experience will give you something, I doubt anyone would disagree that F/O experience - for whatever reason - gives you more grounding than S/O experiences.
just another way of looking at "stuff".
cheers.