The number of seats for sale in an availability display means very little in terms of the total number of seats left to sell.
Imagine if you're looking in the freezer at McDonalds. They have 9 fish filets, 9 McRibs, 9 Burgers, and 9 chicken patties in there. You might think that they've got 36 sandwiches left to sell, but in reality they only have 9 buns left. The strange part is that the cashiers have sold 12 sandwiches. 2 of those people will be asked to wait a hour until more buns arrive, or maybe they'll be sent over to Burger King instead --they'll probably get extra fries for their trouble. 1 of them will be given super-sized McNugget meals instead, compliments of the manager.
[This message has been edited by SpuddBrother (edited 01-13-2002).]