The Burj Al Arab, considered to be a "7-Star Hotel", is the fourth tallest hotel in the world. However, 39% of the hotel is uninhabitable — which just shows that there is a lesser emphasis fitting as many people into a building as possible, and more of an emphasis on architectural vanity sizing.
What's more, the Royal Suite of Burj Al Arab costs approximately $20,000 per night. With that money, you could buy 10 15-inch MacBook Pro's.
Source: Council on Tall Buildings and Urban Habitat