Jim - I agree with you. The Booth photo is way too contrasty and too "flashy". Not that I think Booth takes bad photos, it's just I have some very very good shots from Booth and some -- shall we say -- not so good shots.
But, I think the answer to the question as to why Booth is booked every weekend and you are not (or myself, for that matter) is not Booth's photographic skills and marketing. It is simply that if Booth (or any other photographer for that matter) did the show this year, they will do it next year and the year after that and the year after that because it is easier/simplier for the club to keep status quo. The marketing would have to come from your end and be very convincing. I know there has always been the rumor out there that the photographer kicks back to the club. But I have a very close friend who is high up in her local kennel club here in the midwest and I asked her about that. She told me that, at least for her kennel club, they did not pay the photographer any fee and the photographer did not pay anything to the club.
I really don't have a lot of interest in being the OP for all breed shows, but I would like to do some specialty shows.