Cool question! First, I would have so many rooms that I would never get bored, but I might get lost, lol. I would have a different theme to every room, such as a music room, an exercise gym, an entertainment room (for games, tv, etc.), an exquisite dining room and kitchen, and so on, filled with all the newest, latest, and coolest equipment available. I would also have an indoor pool, tennis court, etc. I would have a special addition of several rooms built just for all my pets so they could have a place to live, run, play, etc. in style as well. I would also have an elevator to go upstairs or come downstairs if I didn't feel like walking. Oh yeah, I'd have plenty of bathrooms too

, and large walk-in closets in the bedrooms, etc. I can probably think of more, but I'll stop here. Good grief, can you image how must this might cost to build, lol.