Sorry mate, but i dont think that would work in the current crunch.
People are happy to give me £15 every month or so but if it then went up to £20, then im sure they would be thinking "mmmm cant really afford that" and i would prob lose that job. I know they would be getting more for thier money but its all in the mind.
IMO its time to keep the prices stable and not lose any.
Bob