It always kind of amazes me when we try to have national conversations on taxation and who has 'too much money' and we never consider things like family size, which this article does - to move from upper class DINKs to upper class with three kids, you have to make 60% more money.

There's also age - if you're 5 years from retirement you need to have a lifetime of money saved up.

And of course 'enough' money is very different when lunch is $8 versus $15.