I’m another who almost always takes his own nosh to airshows (Tube of Pringles and a load of cheese and pickle sarnies). I refuse to pay the outrageous prices for cat burgers and hot “dogs”.
However I’m quite willing to pay for hot food at the smaller local shows (Seething and Old Buckenham being two examples) when its the local scout group manning the BBQ, as the profits are going to the local community not the “kiosk cartel” as mentioned above.