So, not worth jumping through all the extra inmigration hoops compared to Australia or New Zealand, not to mention the language barrier.
My grandfather was German-born and they didn't grant the citizeship to him, and I remember the ridiculous requirements he faced trying to get it (and he was more German than most actual Germans, a Fischer Reuter Spangemberg and more German surnames all the way down)
http://www.spiegel.de/international/germany/skilled-immigran...
"The paperwork is nightmarishly complex and requires a wealth of information, with endless pages and extra documents. Sometimes translations are required, sometimes not. In fact, she no longer sends the papers off without consulting an expert. Anders works as the human resources manager for Adidas. She is looking for skilled workers in Europe, the Middle East and Africa. These days, even a company like Adidas rarely finds new employees in Germany, especially IT experts and designers."