The average price for an apartment reached $1.4 million in the last quarter of 2007.... The reports noted, however, that average prices were being pushed to record levels because of the increasing number of apartments selling at the top end of the market, above $10 million... Still, real estate brokers and economists point out that the overall market has performed just as well as the luxury market. In fact, half of the sales in Manhattan involved apartments that sold for less than $828,0000 [sic], according to data tracked by Halstead Property and Brown Harris Stevens.
Assuming that that "$828,0000" is actually $828,000, this makes sense; the distribution of housing prices is skewed, just like the distribution of incomes. It's rare, though, to see an article that mentions both the mean and the median of a distribution.