Im a member at DL Chorley too.
When we looked at it we decided to go for at based on the fact it is less than 5 minutes from our house. We figured that even though its more expensive it works out price/visit cheaper as we use it so much.
If you go just to use the weights/treadmill it is a lot for that but when you take into account all the classes, the pool stuff and the way the gym staff personalise your workout to what you want to get out and will refresh it whenever you want it isnt too bad.
Plus when its proper minging weather in the winter spinning keeps me ticking over nicely! Guess what im saying is that im happy to spend what effectively the price of a couple nights out a month for that…..