There are "open" koi shows allowing dealers and breeders to compete with hobbiests. However only an idiot would compete and win against thier customers.
Open shows are less about the koi and more about making money than a hobby show, which is more about the koi and less about the money.
You put profit motive into a hobby show and you destroy the credibility, sense of fair play, and genuine competition in favor of making sales, picking up customers, playing games, making points, etc.
There are plenty of legitimate opportunities to make money as a dealer at a hobby show, one of them is not by "loaning out a ringer and selling it only if it wins." That is reprehensible.
I used to work fishing tournaments. Big money in that, big, big money, sometimes a quarter million dollar first place prize. Not a hobby tournament, but a mix of hobbiests and pros. You want to see cheating, reprehensible acts, and downright dishonesty in the name of money, go there.
I've seen....fish caught elsewhere and "staked out" to be picked up by a fisherman during the tournament. Well, debunked that one, not by the lie detector, but by the stomach contents of the staked out fish, bait fish that did not live in that lake.
I saw....an unscrupulous pro use a piano wire to stick inside the vent of a large, gravid fenale bass. The wire broke open the ovaries and allowed the eggs to gain water, adding about a half pound to the fish. Bloody vent and subsequent dissection took care of that.
Both those were prosecuted for fraud.
Do you want to see such as that at a koi show????
Let the dealers enter and run the show.
Brett