World’s most expensive hotel rooms: The Royal Penthouse Suite at Geneva’s Hotel President Wilson costs $83,200 a night. The rate makes it the world’s most expensive hotel room according to CNN.

Aside from the 12 bedrooms and 12 marble bathrooms that the Royal Penthouse Suite has, it has a wraparound terrace with views of the Alps. The backdrop has been said to move a handful of famous musicians. VIPs staying at the suite with no entourage can rely on the private staff, which includes a butler, chef, and personal assistant.

CNN notes that while such super-premium suites are nothing new, it used to be that they were one-off. Luxury hotels these days, however, are clamoring to turn over a lot of space for these ultra-premium suites.

“There were five-figure rooms in the 90s, but there were fewer,” says Nikhil Bhalla, vice president of equity research in lodging at FBR Capital Markets, speaking with CNN.

"Since then, the world has produced many more millionaires than what existed 20 or 30 years ago, so clearly the number of people who can easily afford these rooms has gone up many fold," he added.

In 2013, as part of a $140 million renovation, the New York Palace Hotel showcased a couple of specialty suites, which includes a penthouse overlooking Central Park for $28,000 a night. The global brand leader for Starwood luxuxry brands, Paul James, told CNN that of the 40 or so new properties the hotel group has in the pipeline, about 50% will have premium rooms.

The exclusive and high-end luxury abodes are called “e-wow suites,” James says, referring to extreme wow at the W Hotels.

According to Bhalla, emerging markets are helping to push the demand for luxury rooms to a new level.

"There's more money in the world today than there was five, or even two years ago. In countries like China or India, there's a whole new class and level of people moving up the economic ladder who can afford these luxury experiences. As other parts of the world get developed and their economies get bigger, I imagine that will continue to be the case."