I've been to ALOT of breed shows and I gotta tell you .. Arab shows are the noisiest. We have slept in the tack stall at others shows.. one night was enough! There was screamin' and hollerin' back and forth ALL.NIGHT.LONG... lol
I have seen ponies, oldenburgs, field accidents, Latvian horses, all kinds of german warmbloods - all will flag their tails, to a bouncy happy trot or canter around the place, show fantastic extended trot etc... but you never see that under the saddle. They look funny like that, but also show the potential of the movement. It is useful to see what the youngsters can do and what they might be able to do under saddle later.