We have a limited amount of time & money for Sweden, but one of the things we'd really like to see are the spectacular Northern Lights! I've read about going to Kiruna and taking a dog sled or reindeer out to see the spectacle and am wondering if it's worth the long travel to get there from Stockholm - is it by far the best place to see them? We'll be visiting our daughter over the Christmas holiday - she's studying abroad for the year and we're trying to hit a few diff destinations, with Sweden being one of them. We don't mind making this the big "wow" of the trip in terms of splurging on the budget if it's the only place to go to have this kind of experience - or are there other options that are closer to Stockholm that are nearly as good? (complete with sled dog?) Thanks!