Rotating the game will add more cost to more people, that is not an argument in favour of rotating the GF.Convinced it should be shared. For a national competition it's criminal some non-Victorian supporters may never get to watch a grand final live or have the opportunity to see their team play in one because they simply cant' afford the extra financial costs, such as flights and accomdation, required when it's at the MCG.
For a code obsessed with growing the game, not allowing other cities to experience the hype of hosting a grand final is not how to do it.
Growing the game is the best argument.