High roller suites are often used as free comps as a way to entice gamblers to come stay for a visit but many can also be reserved by the general public, assuming you've got the cash or a credit card handy with a high enough limit.
Aria: Featured in the photo here, the Sky Villas include 2 and 3 bedroom versions with amazing views of Sin City as well as a massive, elegant staircase linknig the upstairs and downstairs areas. You'll have your own personal concierge and private transportation to and from the airport, all for the low price of $3,500-$7,500 per night.
The Venetian: It's good to be the boss and the Chairman Suites at the Venetian treat you like the head of the board. The $25,000/night price tag gets you 10,000 square feet of room to relax in, a private salon and sauna, and even a butler and karaoke room. Yes, that's right: your own karaoke room.
The Palms: The Palms has carved out a niche for itself by catering to a younger, hipper crowd, with its 10,000 square foot Hardwood Suite taking that to an extreme. No, the $25,000/night suite isn't decked out in rare Brazilian cherry wood; it has its own half-court basketball court as well as video games, pool tables, and everything else you need to play in style.
Hard Rock: If you're a high roller who is also into a little kink, the Provocateur Penthouse Suite comes stocked with S&M gear as well as a film projector in the bedroom. It's also a high roller bargain if you stay during the week, with $3,500 weeknight rates that jump up to $7,500 on the weekends.
Caesars Palace: The Spa Suites at Caesars are typically reserved as free comps for guests but for $2,000/night you can relax in an infinity bath with breathtaking views of Vegas and the Strip.