[mattermill]

What about a $40 round trip ticket implies that those of us in LA County or the Bay Area are rich?

[greiskul]

The 40 dollars. That is a huge amount of money is many parts of the world. Specially for the type of people Bill Gates philanthropic work is aimed at.

[tinco]

There's a difference between having 40 dollars, and having 40 dollars to spare :)