I did buy basically the most expensive house we could afford (slightly less than the most expensive we could qualify for) in 2007 in a desirable city. That decision (vs continuing to rent or buying a $500K condo in that city) has likely added more to our net worth than our working for the last decade did. We bought it as a place to live and raise a family, but the financial upside (as yet still an unrealized gain) is large enough to not ignore.