£45 per day would be reasonable to me....... I know what you mean but perhaps students feel that they are getting their percieved monies worth, or cash in = value out. What it actually costs/ running costs etc isn't what I am after.
I think that £60ph is reasonable for solo hire in a Warrior but there is no way a school can afford to operate on that level.
I also think £160ph is not unreasonable for dual at PPL level, but we'll never see that day........unless we convert to Euros