anyone make a price comparison driving to WDW vs. flying?

[Gr8t Fan]

We're a family of 6, so it's always more cost-effective for us to drive, especially when we factor in van rental. I just priced out flights for our August trip on Southwest and the're $1,532, and van rental is $1,422 (for 2 weeks) ! Even if gas hits $5/gallon, we'll be driving.