A man is walking along the strip in Las Vegas and a knockout hooker catches his eye. He strikes up a conversation and eventually asks the hooker, "How much ?"
The hooker replies, "It starts at $500 for a hand-job."
The man says, "$500 dollars ! For a hand-job ?  No hand-job is worth that kind of money !"
The hooker says, "Do you see that Maccas on the corner ?"
"Yes,"
"Do you see the Maccas about a block further down ?"
"Yes,"
"And beyond that, do you see that third Maccas ?"
"Yes,"
"Well," says the hooker, smiling invitingly, "I own those.  And, I own them because I give a hand-job that's worth $500."
The man says, "What the hell ? I'll give it a try."
They retire to a nearby motel. A short time later, the guy is sitting on the bed realizing that he just experienced the hand-job of a lifetime, worth every bit of the $500. He is so amazed, he says, "I suppose a blow job is $1,000 ?"
The hooker replies, "$1,500 !"
"$1,500 ? No blow job could be worth that."
The hooker replies, "Step over here to the window, big boy. Do you see that casino just across the street ?  I own that casino outright. And I own it because I give a blow job that's worth every cent of $1,500."
The man, basking in the afterglow of that terrific hand-job, says, "Okay sign me up." Ten minutes later, he is sitting on the bed more amazed than before. He can't believe it, but he truly feels that he got his money's worth. He decides to dip into his retirement   savings for one glorious and unforgettable experience. He asks the hooker, "How much for normal sex, you know, your vagina ?"
The hooker says, "Come over here to the window. Do you see how the whole city of Las Vegas is laid out before us, all those beautiful lights, gambling palaces, and showplaces ? "
"Damn !" the man says, in awe, "You own the whole city ?"
"No," the hooker replies, But I would if I had a vagina !"