Tom, I had no idea that Rügen didn't have much public transportation. That kind of changes things, maybe. Will play that one by ear. I really would like to go there.
As for the criticism of planes vs. trains, another reason for train over plane is that I have a deep-seated fear of flying/heights, especially after 9/11. The last time I flew was 2 months before that day. Just to go TATL is a big deal for me. I have confronted my fears. I have flown in the co-pilot's seat of a 4-seater plane twice. It did nothing to erase this fear nor make it worse. All in all, there are many considerations for our decision. We put a lot of thought and discussion on trains vs. planes over the past year. We could be wrong with our decision. Nothing is set in stone at this point, but this is how we see it right now.
As for visiting big cities. Yes, you are right. This isn't exactly the trip to Europe that I had dreamed of as a child. I always dreamed of avoiding the big cities and driving wherever I wanted to go. I wanted to avoid the tourist traps. I envisioned a month or two in Europe. I had that trip all planned out. But life's circumstances took over. I will be 62 when we go next year and my health isn't the best. I don't think we will have the opportunity to do this again, so we really need to make sure we see the things we want to see as much as we can. That means we probably will do some of the clichéd touristy things. Sometimes we have to compromise and adapt.