The road trip route can be more important than the destination for a drive across the Treasure State. Jumping off the interstate can turn into a full day of discovering new parks, landmarks, and eateries.
The security lines. No place to put your carry-on luggage. Bathroom the size of a cereal box. Crying babies and body odor. MOST of those things won't be an issue when you avoid the airport all together and make the drive part of the experience.