As requested by the last couple of posters:
I did make the trip to Oslo and Tromso. Oslo was a very worthwhile adventure. Tromso not so much. We did not accomplish our goal of seeing the Northern Lights due to bad weather for four days. But one cannot control the weather. In retrospect, I should have spent the money going to Iceland, Canada, or Alaska where I might have had a better chance at that goal.
As opposed to several attractions in Oslo, there is not much to do in Tromso. Although, we did take a 2 hour drive to the Vasstrand area which was a pleasant rural drive with some Kodak moments along the way. Tromso, was not unlike visiting Kansas to see the largest ball of twine. Unless one is into that sort of thing, there are other more exciting places to visit.
Norway is a Democratic Socialist country. I make no political opinion associated with the fact. It's just a reality that the economic environment associated with it means high prices for everything. Gas, entertainment, dining out, staple goods, etc. A McDonald's Happy meal will cost $15.
The Norwegians that we met were very hospitable. Everyone that we encountered, excepting the much older generation, spoke English quite well. We felt safe in our travels.
We did not make it to Finland because we spent that allocated trip time waiting for the weather to improve in Tomso. But we did make Sweden on our return trip to Oslo. We stopped in a couple of small towns in the western section of Sweden. Some more Kodak moments and some good resturant food. That section of the country has very nice roads.
Norway is an exception to the other 37 countries I have visited. One cannot easily rent a car and drive to their featured tourist attractions. It is more or less a tour bus country.