Because it's likely lower today!
I've been watching Southwest fares for a couple of months now* and today is the FIRST time they've gone down at all, and luckily they went down significantly. I ended up with a $350 credit.
Not only did prices drop, but some previously unavailable flights opened up. Our babysitter was originally going to join us on the 15th but there were no Wanna Get Away fares - it didn't show them sold out, just displayed the "book sooner for better fares" message. So we booked her on the 14th, but the flight selection was poor - only 2 flights available at the Wanna Get Away fare level. Today, ALL the flights on the 14th AND 15th are available at WGA fares.
*I track fares daily on a spreadsheet. This one started on November 1 and I purchased fares on November 10.
I've been watching Southwest fares for a couple of months now* and today is the FIRST time they've gone down at all, and luckily they went down significantly. I ended up with a $350 credit.

Not only did prices drop, but some previously unavailable flights opened up. Our babysitter was originally going to join us on the 15th but there were no Wanna Get Away fares - it didn't show them sold out, just displayed the "book sooner for better fares" message. So we booked her on the 14th, but the flight selection was poor - only 2 flights available at the Wanna Get Away fare level. Today, ALL the flights on the 14th AND 15th are available at WGA fares.
*I track fares daily on a spreadsheet. This one started on November 1 and I purchased fares on November 10.