Okay, thank you for your answer.
As for the decision grid: I'm at points 2 & 3 - gathering information
But thank you for your advice anyways
In the survey I could not find any comparison to other industries but gaming, yet 48000$ for an average across all levels of expirience in Europe is significantly low ... (in USA, the figure is 85000$...)
So if I chose the way of a game programmer, my personal experience with creating games (my skills, some game I eventually programmed) is far more important than my degree?