I don't own, because I think it's best for my children if they grow up in this city, and the city happens to be one where unless you hit the jackpot (literal or parental) or decide not to save for retirement, you aren't owning.

And yet... I wish we could. I know it's not a great investment monetarily, but there are the fringe benefits, like being able to make the place my own or knowing that I'm not going to have to relocate the kids in a couple of years with a few months' notice because the landlord decides he wants the unit back.