im sure this is going to rub people the wrong way. BUT, I bet the way CO does it is fairly cost effective for the airline and for us. Remember when you buy a ticket on CO you are getting a seat, on other airlines, you are getting a space in line.

Also, I would love to think if someone cancels, that CO will offer the lower fare when I need to buy at last minute. With JB SW whatever, when they offer a blanket refund the difference policy, I'm guessing they don't ever lower the fares.