I don't live in a CFL team city so i'm not aware if this occurs but does the CFL or one of its sponsors throw Grey Cup parties similar to the Bud Light Super Bowl Parties? If not, why not?
Doesn't seem like it would take much to do - pay some rent for a small arena/convention centre, get some movie theatre style screens, get a beer and snack sponsor, put up a few displays, maybe bring in some team cheerleaders and put together a few free giveaways and you have yourself a great win to get in spot to go enjoy the Grey Cup.
But once again, I'd like to think the CFL has considered this and that it isn't happening because of a cost evaluation that says it isn't a profitable/break even thing to do. Just seems like a great way for CFL fans to come together and have a good time while introducing the game to others who wouoldn't watch other than that they have a free ticket for free drinks/food/prizes.