Yeah, I have zero room in my Game Room for any of these right now.. i'd have to sell off some stuff first (which i'm generally bad at doing)
If I only had room for one, and I had to choose, I'd really love to get the Street Fighter Legacy cab .. I think the full list of games for that is:
Street Fighter™, Street Fighter II: World Warrior™, Street Fighter II: Champion Edition™, Street Fighter II: Turbo™, Super Street Fighter II: The New Challengers™, Super Street Fighter II: Turbo™, Darkstalkers™, Strider™, Commando™, Final Fight™, Ghost n Goblins™, and 1944™