Couple of points -

- when everyone is seated, it'll make it twice as hard for the person 'delivering' to locate the seat (it's bad enough when someone has lent their season ticket to a mate and the newbie hasn't a clue where they are going!) as the delivery person can't see seat numbers with people sitting in all the seats;

- the ground is right next to a supermarket, just get there early enough and you'll get much better value