Been to Avalon three times and never again. Long way to drive, windy, hot and the dust really spoils the day. The toilets stink, and the gaps are too long between individual flying displays. Horses for courses but most professionals who attend to make serious purchases don't get turned on by little aeroplanes spinning, bunting, flying inverted, making smoke, Harvards doing endless aeros. Kids love 'em though.
As someone said it is a trade show and flying displays are incidental. There is nothing much different in all the Avalon shows