An old friend of mine, basically the only one in our group who has made a big career, currently lives in Berlin. We’ve missed visiting him in Lausanne, we’ve missed his years in Ireland, and now we wanted to finally see him in Berlin.
Berlin, that’s about 800 km from Villach. Of course you can drive that in a day (and we did so on our way back), but we didn’t want to hurry.
To make it short: Nuremberg is about in the middle, and visiting it on our way sounded like a good idea.