I have no sympathy for people who strategically default (aka walk away) from a house because they "deserve" a bigger house. They deserve the Coleman tent, preferably a leaky one.
I'm just surprised that a lot of people here assume that all the people who either default or have their houses repossessed are in a situation that they're 100% to blame for. Yes, the banks didn't sell them overpriced houses, but there is too much evidence of sales weasels, sorry, 'advisers' having sold mortgages based on commission (now there's a surprise) rather than suitability (why, for example, did supposedly middle-class families that weren't subprime end up with subprime mortgages?), said advisers participating in or encouraging fraud on mortgage applications etc. Not to mention that people were deliberately sold products that were/are dangerous to their financial well being (IMHO Option ARMs should not have been sold in the first place and most certainly not unsophisticated buyers, and especially not with the advice of "oh, don't worry, you can always refinance it before it resets").
Now, if a supposed financial advisor told me to not worry my pretty head[1] and just sign the dotted line and everything will be fine, they'll probably exit their own office via the window but seriously, how many people are out there who have enough of an idea what they had been sold to say "no thanks"?
There's also the little tidbit of a lot of banks being extremely unhelpful when it comes to mortgage mods that could keep a family in a house and that are actively encouraged by the government.
At the end of the day it takes two to tango and I don't think either side (banks or overstretched borrowers) are coming out of this smelling of roses. What does hack me off though is that the combination of the two, coupled with the chase of the short-term buck, has made it very hard for me to even consider purchasing a moderate house for the wife and myself. And that's simply as a place to live and not an "investment" that some people thought they made when they bought a house.
[1] My head ain't that pretty, so that tells me they're lying.