But not every punter sees every WG, she bases the market off what people are willing to pay to see her not what every punter in the country is willing to pay. Not paying prices won't bring the price of the whole market down but for an individual WG it might. If you are going to pay inflated prices make sure its for something exceptional.
For example I used to quite enjoy Queens and felt it offered good value but then it seems to go up in price every few months but the service gas declined slightly. What you used to get for £80 as a positive is a neutral at £100.