I got back yesterday from running a 2 day 'jolly' (UK, cultural, enriching rather than directly linked to curriculum, cost £170).
We took 90 kids from four year groups - so about one in eight of our students went. Some hadn't bothered in year 7, had heard from their mates that it was great, & saved up to go in year 8.
As organiser, I happen to know how many kids had subsidised places because they're eligible for Pupil Premium, a twin, or there are other unusual extenuating circumstances. They each paid £50 - in ten installments if necessary - we charge that because if we fully fund trips, we have in the past had kids simply not turn up on the day ('oh she decided she wasn't bothered, she's been invited to a party that night').
I won't be more specific about the trip because I don't want to out myself, but for lots of our party it was a genuinely enriching experience they hadn't previously encountered. Overnighters are also fab for building independence. Also, they had a hoot.
Meanwhile, I caught three hours' 'one ear open' sleep: between sitting on the floor of a hotel corridor until 3am, playing that classic residential trip game for teachers, 'Hotel Door Whackamole', & rising at 6 to amuse the early risers until breakfast time. & all of 3 parents took the trouble to thank us as we staggered back off the coach last night! In my case, to be greeted by a rather grumpy dh who'd had to entirely re-arrange his working Friday & cancel a planned day out of his own on Saturday to fit round our dc.
Don't get me wrong, if I didn't enjoy it & think it's really valuable for the kids, I wouldn't spend the time or put myself through the stress - I'm not complaining...but it's not all about showing off, or giving the teachers a freebie jaunt .