The point is the travel. If you have the time, then this would have been a great way to see a lot of the world. It's a bit of an adventure by itself.
I can't say it would have been very comfortable, so I guess it would be trading time and comfort for money.
I can say as an anxiety sufferer and avoider of planes is that the discomfort helps me feel grounded (literally hah). It's its own kind of comfort.
Exactly. For many, the idea of being able to see England, Belgium, Germany, Austria, Yugoslavia, Bulgaria, Turkey, Iran, Afghanistan, Pakistan and India in one 50 day trip with many similar minded travelers who aren't in a rush is really quite appealing.
Also, with bus travel you could, if you felt like it, leave the trip to enjoy many more local attractions and resume your travels later in a way not afforded by airplane or rail travel.