However i also dont want to cut all extra curiculumn activities and stress (we can cover it but it would be tight if something happens) of covering the 30k plus cost for the next 6 years.
Looks like we’re in the same boat. We could pay the fees for a private prep school with a 90% success rate into selective secondary (that then sends almost everyone to RG and large chunk to Oxbridge), but it would stretch the budget to the limit—no buffer, no proper holidays, and a load of money stress (we have two children).
Don't get me wrong - I grew up in a family that put education first. My mum took extra shifts so I could have private English and Spanish lessons. No expense was spared, so my first instinct is to grit my teeth and pay. But in the end I decided against it, for three reasons.
First of all, that 90 per cent figure worries me. It sounds great, but statistically it makes me wonder what gets sacrificed—music, art, sport? Can every single child that goes to this school really be academically minded, or have they traded other talents because that 'was the thing everyone was doing'?
I also want to support my children talents/interest 'organically'. That takes money and time/attention. If all our cash goes on fees, what happens if one turns out to be musical or the other loves sport? I don’t want to say no to music lessons or I don't know, pottery :D, because every penny’s tied up in school fees.
The last one is the type family life that I want us to have. I want to give my children opportunity to explore as much as possible. I cannot imagine not being able to take them on holidays or teach them how to ski (assuming obviously our financial situation or health does not change). The way things are now we have enough money to go to theatre, cinema, concerts, weekends away without really worrying about costs. We ski, we cycle & sail, if we want to pick up new activity tomorrow that's not a big deal. I want my children to experience all of that as I see it as a very relevant part of their 'education'. Private prep would make it impossible.
So we decided we will go private tutoring route (only if our children show interest) and consider private secondary (which will be easier as we'll have time to save).
Also a practical one: check the 'added' costs of any private school you are aiming for. Uniforms or trips can be much more expensive than in state, easily adding thousands to the bill every year for slightly older kids.