Inspired by this thread, I was browsing through some of the open positions in US out of curiosity. Turned out that I could get about 200K $ / year, I'm still a bit shocked about that revelation...
Whoa, there really has to be a world wide lack of work force in my profession!
I wondered about the basket-weaving majors popularity for a long time during the studies too, but there is another level of this: doing the hard science or engineering courses with lowest possible effort. If you are supposed to do engineering, I never understood the choice of trying to avoid doing the actual work there. Well, it used to be a path to get a management position, but not so any more.
I would advise against moving from job to job often: it is highly country dependent, and screams "DO NOT HIRE THIS GUY" for me. I have turned down several applicants just because of this, not worth the effort if they are moving just when they are supposed to become efficient workers (= after one to two years).