I just re-read my question ... .. and knew some smart arse would come up with that answer. My point was, not all season ticket holders will want an away ticket. Thus If we had 4000 season ticket holders, there is bound to be ticket on sale later in the week. But, I suspect we have a lot more season tickets sold ... 7k ? so just wondering for my own curiosity. I'll leave the maths to you.
I think I've seen the figure 6K somewhere and also... more than one person in the queue said they were getting away tickets for other people by using season tickets of people who couldn't get to the home game for whatever reason