If you look at the pictures on her profile, you will see she shops at YSL and Burberry. Her favourite drink is champagne. Well, of course, what else? So she needs high fees to fund her lifestyle.
Oh and she’s ‘classy’ and ‘intelligent’; (her description).
Too rich for my blood, but she seems to be fully booked on Friday and Saturday, so I guess she has successfully tapped into a niche market of very wealthy punters.