Be a lot better than in Cuba or Mexico City.  AND with half a season in Tampa Bay, and half in Montreal, they likely would have two season long tv contracts, growing the revenue.  I suspect that in the end they would move to Montreal.  That is the international city that seems to make the most sense - ticket prices would be comparable to the US, TV would be fairly close, travel is easier, safer city, etc.  Vegas might have made sense, but I don't think it is ready to support the NFL AND MLB.  Other cities in the US would be iffy, and likely would cannibalize from other franchises.  I've heard Portland mentioned, but I don't think it's realistic, and would hit the Mariners' broadcast revenue.  Fact is, while Montreal wasn't the best city for a major league team - until they had a horrendously bad owner, it was competitive in attendance.