Dog Camps

I saw a posting today about Canine Club Getaway at Roaring Brook Ranch in Lake George, New York. I don't know the ranch itself, but Lake George is a popular New York getaway. This camp says it offers agility, swimming, lure coursing, hiking, frisbee, flyball, tricks classes, barks and crafts, plus seminars by trainers, behavior experts, veterinarians, and canine nutrition professionals. For the owners, there's horseback riding, country line dancing, gourmet dining, and a spa.
There are plenty of other canine-centered gatherings every year, including Dog Scouts and Camp Gone to the Dogs. They seem to be increasingly popular, although our attempt to have one here on the Olympic Peninsula was a total failure. At the Dog Scouts camp I attended (sans dog), the attendees seemed to be evenly divided between returnees and new campers.
So I have to ask, what's the deal? Who actually attends these camps? Somehow I don't think it's the average dog owner (or there would be WAY more of them). Some are for specific sports, so those are easy to figure out. But the general camps, who do they attract? We tried to penetrate the Seattle market to draw from the nearest population center, but apparently failed, or maybe Seattle-ites just aren't interested.
I haven't got a handle on this, and I find it perplexing. Would you attend a camp for dogs? Would anyone you know? Just who do they attract? They were popular before stay-cations, so that isn't it.