Quoted from Hoopoebird:Detached garage game room: fantasy or feasible?
First of all, you can't be detached about your game room - you need to be fully committed to it!
And if you want to go with a fantasy theme, then you'll need games like Lord of the Rings or a 1987 Gottlieb Arena.
Or else go with less popular games in player's condition or worse so their low prices make them feasible to purchase.
Glad I could help.