It's £10/week or £40/month, just don't add up the final total cost! 
That is true. If you look at it like that it's fine. If I find 9 quid a week that's fine. I mean it's really fine anyway I just know I wouldn't pay that outright.
I've taken the same view of my sons uni costs you'd faint if you thought what you were paying out over four years but I just put the lot away in an account from which it will be paid and pretend it doesn't exist.
Need to do the same here. Your other thread does show it to be a lot of fun.