Game arcade hypothesis

Hypothetically speaking, if I were to open a game arcade, console based of course. What consoles should I use. Do I carry the latest generation/ or rather the current generation [ playstation 2, xbox and gamecube ], should I carry the dreamcast as well? If I decide to go with the current generation alone do I even carry gamecube as its the least played console of the current generation?

Your input will be greatly appreciated, just leave a comment. Thanks in advance.