To me it's worth $30-40k per annum. That's approximately the pay cut I took to run my own business. I get to spend more time with my wife, and work on things I enjoy.
It's a lot. I live very differently now.
You can say that owning a house is more socially desirable and thus subsidized, but that's still not really fair to those of us simply too young to have saved a down-payment.