An outdoor ice hockey game in Phoenix would be an engineering marvel I would have to see to believe. I can’t believe that’s feasible?Each team would be responsible for the bulk of the cost. And it would create great buzz in their community. You mentioned the Coyotes. That's a good example of a franchise that needs to create interest as the future of the team where it is has been an ongoing issue. They would really benefit from getting people excited and involved.
And if you get a look at the player salaries these days... even journeymen players are getting multiple millions a year in salary. There is money to be had for franchises to use. Also, the NHL is working to grow the game globally. This kind of thing can be exported to other places beyond North America.