Oh wow, that is something completely new to me. I didn't know they made model planes that big. What do they run on? Kerosene as well, or some other fuel?

And that does sound like a very expensive hobby, though most hobbies that involve tech have a high price point in the highest tier. Definitely a good idea to start slow and try it out, first. How does that work, do you start with smaller planes and then work your way up? Or are there planes the same size, but less expensive? I imagine that flying with a smaller plane is not the same at all, so it has to be somewhat in the same range as the goal-plane to make sense.