This is my first time to Germany and I'm wondering if I should buy my ticket before I go or when I get there? I haven't been able to find out much information on that topic telling me which would be cheaper. We will be renting a car for most of the time so we only need one way night train tickets from Munich to Dusseldorf. Is it cheaper to wait till I get there and buy them or buy them over here?
Also, what exactly is a "day couch"? Is it different than a couchette?
Is there any reason why I shouldn't buy the savings fare?
Thank you very much!!!!!!