Uh, no. Those people didn't pre-pay to get a reserved seat just for them at a specific table, in a specific chair, with individually-monogrammed tablecloths and napkins. This would be a more appropriate analogy for a specific dungeon.
In this case, the players pre-pay to be able to play the game, and that includes millions of different things to do in it. Just because one part of it is crowded, there's still plenty more to do.
