How much driving will you be doing each year, and what is your driving style? Also important, what type of winter conditions will you encounter?
Ideally, you will want a dedicated winter set, and a separate set (usually all seasons) for the rest of the year. Long term costs are very similar provided you keep that vehicle for a long time.
If you drive limited kms per year, or simply can't afford (or don't want) 2 sets, get the Nokian WRG2, or alternately (and much more cheaply), a set of H-rated (or higher speed rated) winter tires and use those year round.