Old Airplane For Sale Is There A Catch To Those $1 Flights Spirit Airlines Offer From Time To Time?!?!?

Is there a catch to those $1 flights Spirit Airlines offer from time to time?!?!? - old airplane for sale

It seems that every two days, Spirit Airlines, has completed the sale and you can get a ticket from Fort Lauderdale to Nassau, Bahamas for $ 1, for example. With taxes and all, the bill comes to just under $ 25, which is always a surprise, the only drawback is that you can travel on certain days, which is good because the price is so surprising, but at the same time ... Are there any other catches? I need someone who has traveled in one of these deals before white. You know, as Mother said, if something seems too good to be true, it probably ... thats what I feel Spirit offers to them. I think they will give us the oldest aircraft, they will cancel the trip, we spend two to a seat ... There must be something! Where's the catch here, people?!? someone help me! * Thank you in advance!