Yep, until last year, me, my mate Mick, and Karl (Rochie) did the camping thing for the Duxford shows, staying on a site at Fowlmere, just up the road.
Now I have the 'Tin Tent' (my camper van), which I've only used for the BoB show at DX last year, so far. But it means that Karl can have a 'bedroom' in a 'proper' tent, rather than crawl into what we swiftly named his 'dog kennel', after eleventeen pints and a couple of shots of 'Scottish White Wine', whilst I have the relative luxury of a bed, electric light, heating,and a solid roof over my head, and of course we all have the convenience of the fridge, cooker etc in the van, plus the 'seating area' under the wind-out awning, or the interior seating if it's cold and wet.
As you know, like most major air shows in the UK, hotel or B&B accommodation for the Duxford shows normally needs to be booked well in advance, hence the reason for getting the van - plus it's a lot cheaper too !
Unfortunately, due to this stupid disability these days, I need someone with me when I go to shows, to help out - at least if camping, anyway - and both Karl and Mick are restricted for time this year, so I'm not yet sure which shows I'll definitely get to. But there are a couple I could just about manage myself, although I might use B&Bs for some, to save having to drag my mobility scooter in and out of the van too often, 'cos that really b*gg*rs me up !!