Allegedly, it's the size of your wallet that matters, according to someone with space to fill.
I would be willing to offer myself in a research capacity with a representative sample of women and do a before and after thing; we go once as I am now - i.e. fucking skint - and again after I've been given a huge amount of dosh and see if there's any difference. If the experiment fails, I think I could live with the disappointment. Exactly the sort of hard work, sacrifice and commitment to the primacy of science that Obama was calling for in his inaugural speech, I feel.