Interesting thread. It all depends on your outgoings and lifestyle.
H is self-employed so our income varies every year. Last year he made around £700,000 which sounds like an eye-watering amount of money, BUT...
After tax that's around £400,000
We are in a long-running legal battle which cost us about £100,000 in legal fees last year so now we are left with around £25,000 a month
Monthly expenses:
Private school fees & nursery for 3 DC + DSS: £5,000
Rent: £6,500
Maintenance to exW: £6,000
Child maintenance for DSS to ExW: £2,500
Two cars/live-in nanny/DC activities etc: £3,000
That's £23,000 already.
Doesn't go very far.
If exW remarries or has more children then we will get to stop paying her £6,000 spousal maintenance a month. But who would when you have such a great deal, right? (Yes, I'm bitter)
It's all relative OP. Every family and every situation is different.