SexStation,BangBabes,BabeStation: Whats the point?

[JamesW]

I think most of them are ?1.50 a minute, but when I flicked through the other day I saw that some are ?1.00.

TVX Callgirls is only 75p (was 50p for quite a while).

At certain times I think some of the channels are half price (happy hour or something like that).