It takes more effort to get out of the city, especially if it's only a short trip.

Yes, you can see northern lights in here, but mostly just in Lapland, the farther up north you go, the most likely it is to see them :)

And, what comes to camping, I think we have pretty much the same laws than in Norway, though 100 meters sound too little, I'd kick out campers if they were that close to our house xD