Imagine the satisfaction of cruising down your private elevator with your guests and (ding!) the door opens on the lowest level to reveal this. The state-of-the-art bowling alley comes complete with bowling balls, shoes and monitors. The night is made.
I'm totally into this for a party idea. I love playing games at parties. This reminds of a party I had once where I created a life-sized boardgame in the backyard and had a "Mario Party" Party that was just like the video game. I wish I had pictures. ):