1 billion.
I crave the feeling of never, EVER needing to worry about money, or how little I have. I think even with a few million, I'd constantly think "can I afford this" because houses, cars, handbags...aren't cheap.
Damn...seriously? There are a lot of things in life to be greatful for - your arms and legs (think of people missing those things); your friends and ******; the friggin' beautiful earth. :dunno: Ehhhh, everybody's different.