In most circles, $1,000 or $1,500 a night for a hotel suite would net at least a raised eyebrow; $2000 would certainly give most people pause. But for the world's most elite travelers, a room that costs less than $5,000 a night isn't even worth considering. At ritzy hotels in some of the world's most extravagant cities, presidential and imperial suites can be had for prices that climb to more than $10,000 a night! What does this kind of lucre buy? We've investigated some of the world's most expensive hotel suites to answer that very question.