In affluent Hertfordshire there is an increasing tendency to try to get £160 which would have been £150.
Similarly £130 moves to £140.
I've noticed this too. I'm beginning to think it might be worth spending a £20-£30 on petrol, parking and congestion charge (if necessary) to drive down to London for some of the what-looks-like-a-bargain-price girls that get mentioned and reviewed on the London board.
I've just done two months punting budget in a week on one Herts girl. Absolutely no complaints about the girl, the service or the price and if I had to do it all over again, I'd do it all over her, again. Just can't afford that much no more.