Although Antiqua is used almost ubiquitously in Germany, Fraktur still has its proponents in Germany (mainly among older people). Just to give one reason, which I consider as pretty convincing: Fraktur has two different small s (long s and round s)
> http://de.wikipedia.org/wiki/Fraktur_%28Schrift%29#mediaview...
while Antiqua only has one. Since in German combinations of st, sp are pronounced differently and in German words are concatenated by juxtaposition, this can lead to situations where writing a German word in Antiqua can make it non-unique: Consider the word "Wachstube". Written in Antiqua it can either mean "Wach[-]stube" (guardroom) or "Wachs[-]tube" (tube of wax). If you write this word in Fraktur, it is clear, what word is meant:
> http://commons.wikimedia.org/wiki/File:Wachstube.svg
I only explained the situation for the small s. There are lots of other rules, too. For details see