NSR,
Here’s my take on your numbers. There are about 650,000 family households. My guess is that most of us never really come into contact with more than a 1/3rd of those households and that they are outside our everyday frame of reference. Understanding where most of us are in life, that leaves about 400,000 middle class and up familes that we would genereally relate to on some kind of a personal. 1 out of 5 of those familes with HH incomes of $150K+ sounds about right to me.
