I actually think it will do pretty well in Vegas. When compared to most of the other tickets in town, an NHL game will be a cheaper option to kill a night. Especially if they end up having a decent team. It's definitely an economic hub, unlike Phoenix, Arizona.
My only true concern is the West having an odd number of teams. That's why I'm hoping there's still a chance for expansion in either Seattle, or Quebec, or another deserving market. I won't be truly pleased till both conferences have an equal number of teams.