Thats the whole point isn't it? Everyone wants to live in the most desirable locations. People without much money (typically those starting out in life) can't out bid the rest of the market so they need to find a less desirable place to live at will be more affordable. Note: I dont say...
Using the median house price as a measure of affordability is silliness perpetuated by journalists who (a) want to sell stories and (b) are too lazy to use a statistical measure more relevant to their arguement.
If the median Car price was $30,000; nobody would say cars are unaffordable...