Lol, it's suppose to be a myth but I've had some luck getting low airfare prices in low travel seasons. Even though they reduce the amount of flights to match demand they never seem to fill up the flights I'm on.
Total myth where I am but there's very little competition - major factor. Depending on the origination of the flight & number or airlines, you will benefit from those factors. Lacking in FL... competition. No incentive to lower fares.