I live on HK island, so I occasionally scan the Wan Chai / Causeway Bay hotel girls. I also enjoy a bargain, so I also scan the Prince Edward hotel listings. I've noticed a number of situations in which an $800 Wan Chai hotel girl will show up for a day or two as a $450 Prince Edward hotel girl. For example...
Siu Tim Yee is usually in Wan Chai or Causeway Bay, but is currently in Prince Edward...
http://www.sex141.com/en/viewid.php?uid=26339
Siu Jin Jin is usually in Causeway Bay, but was in Prince Edward for a day several weeks back...
http://www.sex141.com/en/viewid.php?uid=20391
I assume that the switches are made because of hotel rates and/or availability. PE is less convenient for me, but not $350 less convenient. Has anyone noticed this phenomenon and sampled the PE wares? Is there any difference in the service -- for example, does a girl get "sent to PE" when it's that time of the month?