LP we're pretty much on a par with how we would spend stuff...
I have been thinking though that a lot of things I really like are not hugely expensive. I often see very expensive things and think "I don't like it, it looks awful"...
For instance stupidly expensive penthouses etc... I don't like the style, could never feel at home there.
Some really expensive fashion just makes me cringe in terms of design etc.
Places like Monaco and its people (I mean the celeb tax evaders, not the normal local population) are my idea of hell.
I guess it would be nice not to worry whether you can afford to see a hair dresser AND pay the road tax in one month... 
I would love to have a farm house and space to keep horses, like Seren said. I guess the money would buy plenty of surrounding land too.
I would love to travel, but I actually like to rough it and really experience a place in its natural state. What is the point of travelling Vietnam and stay in a Hilton?
I do wonder if I'd struggle to spend it? 
That's not to say I wouldn't like to try...
Interesting point about what people said about giving money changing dynamics of friendships etc. 