I haven't flown in years. It's simply too expensive.
If you factor in the amount of time wasted waiting around to get through security, waiting to get on the plane, waiting on the plane to take off, waiting at the gate after landing, waiting on your luggage, waiting on transportation from the airport, flying isn't much faster than driving.
Gas may be expensive, but the buttfucking you get at the airport just isn't worth it anymore.
Really depends on how far you travel. I hate the air travel process in general, but there really aren't great alternatives to go across the country (U.S.). Need high speed rail, but the politics for that to be approved is soooo slow and complicated.
Long distance rail right now in America is slow, full of gaps that require LENGTHY bus rides between connections, and costs about 4-8 times more than just taking a plane.
I live south of Toledo and my parents live in Houston. If my brother (who lives in town) goes with me it's cheaper for us to drive, plus we can take more stuff with us, but it takes us 2 days to drive there and 2 days to drive back vs about 8 hours total travel time (1.5 hours to the airport, 1.5 hours window for security and getting to the gate, 1.5-4 hours depending on if it's a direct flight or has a layover, 1 hour from airport to my parents place). Obviously it depends on the distance, and i much prefer road trips, but it's not always so clear cut.