Dang it, Perry! It figures you would respond to the “never” comment. You, as usual, are correct. Never say never.
Your comment to meadondale about opportunity cost is sound, but I just wanted to echo meadondale in his response that many of us (especially w/ young families) do not focus on the investment aspect of house, but are looking for a “home” for the long-term.
Maybe us Alt-A folks are a little part of the problem like you say, but maybe the view that you have regarding housing is part of the problem as well. Afterall, looking at a home like it’s an investment is what fueled the speculative component of this bubble.