Short on space? How about a customizable game?
In the heyday of arcades, when a game got old (or not profitable) and an owner wanted to buy a something new, they would often save money by buying a conversion kit, rather than an entire new arcade cabinet. Kits ususally consisted of a new game board, marquee, control panel and side art and would install inside one of the cabinets the owner already had onsite.
As an arcade collector with limited space, I loved this idea. I began collecting game boards and kits and would swap them into my various cabinets. Whenever my guests would come over, they loved that there was always something new to play.