jkzahn:

Sorry but I can't comment on the prices you quoted. My NIAN tour was part of a full-package deal that included air, some meals, lodging, time in Oslo,
etc. and I was traveling with a big group. I'm not sure exactly what the NIAN costs were. But I can tell you that you are in for a real treat! I didn't get to go
all the way to Bergen. BTW, the weather was not at all good during that portion of our trip. Let me just say, be prepared to dress for the weather and you'll enjoy the day (and the sites!) regardless of the snow, sun or rain!
Have a good trip!