I guess:
- very motivated to go
- plan to stay for a very long time
- absolutely CANNOT afford a plane ticket
- or, afraid of flying
Reminds me of a lot of Amtrack routes in the US. I looked at trips from NYC to Chicago. I thought it would be fun and I needed to get to Chicago. But it was more expensive than flying and like 25 hours. There is just absolutely no reason to travel that way.