I also agree with everything that TJ says - what a man (or woman, not quite sure).
But excuse my ignorance - isn't the free market about supply and demand, rather that us asking on a web site as if it is a magic wish, don't business people suss out the local demand and then invest accordingly?
But to show that BD is also about the good things in life (as the Yellow pages) and not just having cheap shops at his chums on SE23 I recall there was a women's gym in a church on the left near the bottom of Kirkdale, and similarly in Sydenham another ladies only: http://www.gymophobics.co.uk/
As we are all getting fat no doubt the market will respond and supply more facilities in future, unless the credit cruch ends up with us all becoming emaciated.