Consider this:
While we may be one of the happiest countries in the world, immigrating here is said to be a pain in the ass for non EU-foreigners. Also we're getting taxed like crazy.
On the other hand, we're a retirees paradise, they are a very strong voting group and getting stronger relative to the workforce, so they're heavily catered to by politicians.
Frankly I'm very skeptical about this happiness-index, not that I'm not happy with my current situation, but I don't see Austria doing anything but falling behind in terms of competitiveness every year. To me, the fact we're on eighth place says more about the blissful ignorance to looming budgetary and economic and educational problems, than it says about a realistic outlook to the future.
If you still decide to move, Klagenfurt is located in a basin, that is very prone to
Inversion