While the guy is very infomercial-like, I tend to agree with what he’s saying. We will very likely have a currency crisis sometime in the future. When and how it will happen (and what happens in between now and then) are the big questions.
This currency issue is the only reason I’d consider buying a house in the higer-mid to higer tier areas right now. While I’m a deflationist in the short-term, I do believe that inflation/hyperinflation is a serious threat in the long run.