Ok sdrealtor, I modified it as follows. Hope you are happy now :-).
In my view, the big three housing boom culprits are:
(1) sdrealtor
(2) Too many years of artificially low interest rates via the Fed;
(3) Too much easy credit via lenders (option ARMs, etc.); and
(4) A lack of risk aversion on the part of home buyers and investors, mostly a result of the “Greenspan Put.”
I’m sure there are other reasons, but I’d say these are the Big Four.