I have two doors in my game room pinball area, so I had to be selective about what went where. For example a wedge head takes up less space than Super Orbit which I swear has the widest backbox in the history of pinball.

Anyway, I had to measure the wall space and then try and pack them in there as best as I could. It worked out pretty well actually, but I do have two areas with a mix of games. Walking Dead, Alien Star, Ali and Super Orbit are all together, but they fit between the bar and the utility room door.

I guess the long winded answer for me, is that I went for maximum use of the space first and then trying to put similar style cabinets together. You will do some shuffling because certain combinations of cabinets just look weird together.