When I've booked a girl - the receptionist has her hand out for the money before the girl walks out. So if you haven't met her, I'd say tough if you don't like her.... When I book, I'll ask if other girls are available for an intro, but know I have paid for the booked girl. To be honest, I don't it that often now - if a gorgeous 18yo sweetie cam out as one of the alternates, I might ask for both, or just pay for both, and burn the cash on the booking!
Booking sight unseen is only *ever* 30min, so it would be $120-150 down the tube. I could live with that if the other option was awesome, especially as those really great ones never tend to hang around that long......
If I know there are others on at the time, I've said to the WG that I'd like to chat with the receptionist at the end of the booking, then see if anyone else would come out and say hello - I've gathered useful intel like this before. They usually agree, even though I'm clearly not going to book them at the time.... Slipping the receptionist a 20 goes a long way too.....
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“I've been thinking with my guts since I was fourteen years old, and frankly speaking, between you and me, I have come to the conclusion that my guts have shit for brains.”
― Nick Hornby, High Fidelity