In the past I have had dedicated gamerooms at 11x15 and 10x11.
Right now I just have two games in the bedroom (uprights), and 3 uprights, a Candy and a cocktail in the living room. 2 of those 3 uprights are to be gotten rid of (one is already bought and paid for, the other I am also looking to ditch), and I have another cocktail in project stage (in the basement), and I would like to get a second Candy.