I agree with Killclimbz. The vast majority of boarders will not attempt the more hairy traverses at all once they realize the effort involved. At Alta I believe most boarders, just like most skiers, will stick to the ample on-piste terrain. In any case, only a small percentage of the skier's at Alta ever even attempt to get to the backside or catherine's, for instance - just watch the flow of traffic from collins or supreme. The stashes that make Alta unique (off the high traverse, devil's castle, catherine's, etc.) will probably remain as protected as they are now. The boarders that are truly interested in the terrain accessed by traverses will invest in split boards. Occasionally you may be forced to stop on the traverse for a wayward boarder, but it's practically a guarantee you'll have an analagous wayward skier in your way on a busy weekend anyways. I do believe (though I don't have figures) that Alta's recent yearly skier numbers are well below their highs of years past. They run a business and thus must make money (especially to pay for upgrades like collins), and when all you do is run lifts the only way you can keep up is to either raise prices or expand your customer base. I think it's due time that they allow boarders - the ramifications are overstated and the two user groups have learned to quite happily coexist at practically every other resort in the world. The same can be done at Alta.