If you're good, you get comped a lot more than swanky rooms. A friend of mine has done this for a couple decades. He gets comped cars. Nice ones. He sells them. He's always selling stuff like $1,000 Saks gift certs online.
He gets what they call RFB (room, food, and beverage) out the wazoo. He's drank more expensive wine that most sommeliers. At one point it was hard to find an expensive restaurant in Vegas I hadn't eaten at, and I only saw him a tiny fraction of the time.
He gets his plane trips to basically anywhere with a casino paid for, often in a chartered jet. A guy with a sign with his name meets him at the airport.
In most parts of the country, if you ask enough girls if they want to go with you on a private jet to a luxury suite at the Wynn, one will say yes. Not a direct perk, of course, but an attractive indirect one for a single guy.
The value of the perks is substantial. You could buy them, but it would cost a lot.