Dave,
It can't be the spelling thing, I've lived here longer than not and still can't spell 90% of them. If I was a guessing man, I'd guess that it is the expense and being totally unfamiliar with the surroundings. It's one thing to drive to another state and hunt in familiar terrain, but to spend 500 bucks on a plane ticket, take a week or two of vacation, spend another 500 or 1 grand on a floatplane or bushplane charter without any idea of good spots to hunt, is something else. Then the added expense of shipping your trophy home, etc... Add that to Alaska's notorieous weather, it's pretty tough to do without a guide. Guides are pretty expensive proposition, worth it, but some may not be able or willing to spend that kind of money.
Just some ideas.