Because over a long time it provides enough of a fund to invest in the equipment, because it wasn't always such a big gap, and even if there is a large part going to bridge that funding gap, when you multiply it by 500-plus students it's enough to hire extra teachers
I hear what you are saying. By your calculations, €1500 per head across 500 students generates €750k. Assuming half goes into facilities, games etc.....then that would pay for roughly 5 extra teachers. Ball park, my calculation is that this would bring the pupil teacher ratio from 30 down to 23. Which is a reasonable outcome I suppose.
Straight up, I'll say that if I was to consider a fee paying school (and I would consider it) a big part of the reason would be because I think my kid would be surrounder by other kids who were more likely to want to study and to be encouraged to do so at home. Thats an inherent snobbery on my part, but I dont give a f8ck, its the way it is.
Having said that, my understanding was that none of the fee went into paying for teachers; that this wasnt allowed. I stand corrected on that front.