> I do believe it was the mortgage interest tax deduction that helped create the real estate bubble.
I believe that pants helped create the real estate bubble. After all, almost everyone involved wore them at one time or another.
What? People wore pants before the bubble? That's no more relevant than the fact that mortgage interest was deductible before the bubble.
> Not even aware of where the money was going and that they were spending two dollars to save one.
If you're paying the mortage, you're aware.
Of course, you're only "spending two dollars to save one" if your marginal rate is 50%. If you want to reduce the value of deductions, lower marginal rates....