Answer:
"Hey, Joey. Why did you buy all these new tools for the farm? We can't afford it!" said Jill.
"Look at all of our eggs, once they hatch we'll be able to afford this and more!" said Joey
Two weeks later.
"Joey, more than half these eggs turned out to be rotten! What will we do now?"
They might have not been cool and calm, you didn't add the story
In this scenario, yes, you should wait. If you know that there is a possibility that you won't even show up and that there will be extra seats anyways, there's absolutely no reason you should rush to buy the tickets and risk wasting money.