Why all the fuss about a WG raising her rates? It's a free market economy and she's had great, if rather over-elaborate, reviews (here).
If I was doing her job I'd probably prefer to see three punters at 200 than 4 at 150. If the market says no, then the rate comes down (as girlfriend Lara a while back), or she jacks again to 300 and heads for a different market. It's just business and you can't buck (fuck?) the market.