I liked the visualization and data, but I don't think it makes sense to compare home prices to wages w/o considering alternatives to home ownership. Home prices don't exit in a vacuum. That is, if a home is 10x the median salary, you can't really say "well, if I didn't buy a home I could work 10 years less." That's because the alternative to buying is renting, which is also expensive. So sure, a mortgage in SF is $6k…
There are more alternatives: work remotely, live in cubicle under table, live in a car...
I could buy a really decent home here (Southern Missouri) for somewhere between 0.5 to 1.5 times my yearly salary. There are many factors affecting that price but there are some really decent houses at the low end of the price range. Extra bonus: property tax, income tax and sales tax are all relatively low. Unfortunately that doesn't apply to the entire region; some neighboring counties have ~8x higher property tax than where I live.