yes, if you got to germany, you can interact with people
but seriously. i learned german, it helped me a lot on these forums already.
some threads are german only, while i couldnt oin the conversation, i still can make up what everybody says and what it's all about. I think that nowadays is my main useage of it, however i got a vacation job in germany for this summer (ok, not certain yet, but i applied and had some contact), due to my small german knowledge, i got easier pass all other aplicants.
and learning new languages is fun
regards,