As someone who flew in Sweden when I got started, and based on info from that period, Norway and Sweden are pretty similar in airspace/fuel prices etc. That could have changed, but I doubt it has as they've always been joined at the hip a bit. Since they're small countries, aviation isn't over regulated. 90% is G airspace and have tons of smaller fields littered across. And in Sweden (and I think Norway) you have the right to land on pretty much any lake on floats. Back then there were no landing fee's, but you had to buy a yearly landing card, bit like a resident's parking permit to be able to land on the medium and bigger airports. Don't know if that's still going. Some of the small private airfields may charge.
Norway is gorgeous, it's like the hidden New Zealand of Europe in parts.