She is indeed part of the "exclusive" stable. Trades under the name of Amy.
No personal experience but I think punters are paying a good proportion of the fee towards venue costs. They have had some stately piles.
I'll leave it to you more savvy guys to do the maths but generally if the lady is not getting the fair whack and so a production line develops to do the turnover, then it can become a bit supermarket.
Just my take on it though from what I've read.