I sure would like to know the answer to that question. I work part time at a dealership and, so far this year, there has been virtually no work for me. I have to believe the high fuel prices are scaring many away. I doubt the camping fees, etc would be enough to prevent people from buying. The past three years have been extremely busy tho last year was slower than the previous two.
I will give you a data point. For years I have stored in the same lot and by June the lot is only about 1/4 th full as people hit the road. The last couple of times I have been down to visit my rig I have been amazed that the lot is nearly full. So the other day I did a quick count and less than 20 percent were gone from the lot!
Business has been a tiny bit slower than last year at the campground where we workamp (Camden/Rockport Maine) but filled up as usual for a local "blues" festival this weekend. 4th of July weekend was not quite 100% full, though, which maybe says something.
I know I am glad we did not plan to travel extensively this year - only about 5000 miles. Workamping has the advantage of keeping us in one place for about three months and the credit card bill benefits greatly from the lack of fuel consumption!