We're members of the Camping & Caravanning Club, mainly for the big campsites guidebook which lists hundreds of little Certified sites on farms etc. These are cheap and quiet, and suit us fine, although for some of them you need your own toilet (we have one in the camper, but it's trickier in a tent). The Club sites are well organised (maybe a bit too much..) and good value, especially out of season and/or if you're over 55.

But like most people here, I've never tried their Folk Section. We're not interested in the rallies and the clubbier aspects of it, we just join for the services and information.