Since I first saw this documentary in 1997 I've been thinking about it over and over again. It sort of predated the whole current "anti-stuff" movement and was an awesome return to 70s liberal capitalist/materialist-bashing. So, it has taken me that long to find it again but I did, finally:
It is an amazing piece, well worth your time.
Of course, there are a ton of things on simplifying, like the PBS show
and the book by two people who were in Affluenza:
Your Money or Your Life.