I voted the first option, because it is close enough. But I don't travel to a bunch of different cities to see my team.
So really, what it is is, I'm going to Vegas regardless, and my football team isn't hometown, and my hockey team is stupidly priced, so I am willing to look at scheduling the Vegas trip I was going to make anyway around seeing one or the other play.
Of course, my football team only would play in Vegas once every 8 years (2018 next), which helps and hurts. Makes me more likely to schedule around it when it happens, but it won't happen often. And whether the
Raiders manage to either have a stadium up (near impossible) or play at UNLV in the meantime could impact whether 2018 is possible.
The Leafs in Vegas could be interesting though. Vegas already could have home team issues, but between snowbird hockey nuts, and the possibility of some Arizona Matthews fans coming in, it could be like a home game.