brcase
En-Route
I've heard it from many first-time passengers whose alternative is usually airlines, not driving. However, most of these people are not paying the bill personally. They are traveling on their company's or their friend's dime. I wonder how many would be able to justify the expense if they were shelling out for it themselves.
When you add pay, meals, Hotel, Taxi (from major airport) for 3 days as compared to what is a same day trip by air. The economics start to work out much better, especially if you sending 3 people on the trip.
Brian