The low rates are not just for buyers they are for refinancing which has the far greater impact as a stimulus. I just got back from a Girl Scout meeting tonite and spoke to two dads who were in the middle of refinances. Both will see their monthly expenses drop over $300. One is going to get his wife a new car which they have put off for years. This multiplied many times over frees up personal discretionary income much of which will get plowed back into the economy. The PTB are smarter than you think.