Earlier quoted context omitted.
NYC to most people includes all the bureaus and sometimes even Jersey City, etc. There are lots of more affordable options (e.g. Astoria) than downtown Manhattan, whereas such options do not exist in Silicon Valley.
If you're willing to include the kind of 60-minute commutes that New Yorkers living in outlying areas have, you can live in all sorts of cheap satellites of SV too, depending on where in the valley your job is. For example, if you work in Cupertino, you can live in Gilroy; for other parts of the valley, you can live in Livermore. There are also cheap parts of the southern East Bay that are pretty nearby. Even the cen…
A lot of the statistics are questionable, most certainly including the average apartment cost.