Answer: they are buying over-priced real estate that will drop in value once interest rates go up or credit tightens on fears of increasing defaults on mortgages.
the "investors" are going to do the same thing they have always done. take a look at the 1930's for a clue to what will come. best, surf
Chances are the 00's are not going to be a repeat of the 30's. This time the Fed will err on the side of easing. In fact, they already have. A more likely scenario for the U.S. stock market is as follows: http://finance.yahoo.com/q?s=^N225&d=c&k=c1&a=v&p=m50,m200,s&t=my&l=on&z=m&q=l