I hear and see too many people counting their proverbial chickens before they hatch. I believe about half of these businesses will go OUT of business before a year has passed. And the ones who survive will not do as well as they think. Why? Because marijuana has been legal here since the seventies, despite what the statutes say. It has been roundly ignored except when convenient for the fuzz or a prosecutor. 

As a consequence, too many people who already use marijuana already have black-market sources which are much cheaper than "store bought." Alaska isn't Colorado and I don't believe there's a "green rush" happening except after a pull at the bong. Edibles and medical-grade dab will be most of the market going forward.