I know the answer to that one Tonio, Jealousy, envy, life being threatened.
Ok, now I will be serious, I think a lot of the high end hobbiest have quit showing due to Politics. People get very angry if one person wins to many awards, they say they bought the show, they got more money than me and it is not fare. They brought in the ringer. Etc Etc.. They get tired of all the BS, so they become private hobbiest.