Apart from validation, what do you get for your £60?
Camping, manned check points, hot meal and drinks on Saturday evening, hot showers, covered social area with bar, music etc.
It's not my sort of thing, but if it was the cost wouldn't put me off. If I were to do two Audax in a weekend, then pay for camping and a meal in between there might not be such a difference. OTOH there's those were I can camp a couple of nights for free, stuff myself with enough food to last a week, do a DIY home and still have change from a twenty