There's one thing about it that surprises me a little: the comparatively big jump moving between the $180k-$200k and the $200k+ categories. Sure, that last cate

There's one thing about it that surprises me a little: the comparatively big jump moving between the $180k-$200k and the $200k+ categories. Sure, that last category includes the veryveryvery rich as well as the merely quite rich, but I'd have expected -- wrongly, perhaps -- that both the link between (parents') intelligence and wealth, and the ability of wealth to purchase better education (in a broad sense). would be showing diminishing returns by that point. Perhaps it's just a statistical artefact: the last category is relatively small. On the other hand, the absolute numbers are pretty big.