My argument is not whether that’s good business practice. The fact is that it is done. It’s done because it helps their bottom line. If you force them to not do that, then the loss in profit is made up by increasing ticket prices, which is a loss for all ticket buying passengers.
So the ethics of it is a different argument that you can have with whoever closest is studying philosophy that you know.
I’m talking about the extra $30 that we would all have to pay buying tickets on Travelocity.
Your math is in error.