I've made several comments about this on t'other side. http://forum.anglophone-direct.com/ftopic11129.php
Visitors from Britain are definitely down. It's not just recession it's also the Olympics and the related rise in airfares to and from London and SE airports. Combine that with Ryanair squabbling with the airports here and it makes it difficult for people to get here, so they go elsewhere if they do go abroad. There's also been a push in the British media to encourage holidaying in the UK.
I've done three days wine tasting at Caves Byrrh in Thuir. It's allegedly the most visited tourist attraction in the Roussillon and in all that time I only came across one British visitor and he lived in the Dordogne.
I'm not sure I understand the mindset of the campervanners. I can get the concept of the freedom it provides but like GC, I can't see the attraction of spending the night in an ugly location. Is it to save money or just bad planning?
My friends who have a winery have joined an organisation that offers free pitches to campervans on the understanding that they will buy some wine. Sounds nice but the sight of people sitting in their underwear on plastic chairs outside decrepit vans doesn't really set the tone of a winery worth visiting.