Cain is operating on a very low budget...and that is probably his biggest issue...being able to finance his run for the long haul.
Personally I think it's because Cain is making this stuff up as he goes along. I watched a clip of him vs. Chuck Todd, which I guess was on MSNBC yesterday some time, and Cain was all over be board. He claimed everyone pays a 15% payroll tax, which is not true. He claimed a family of 4 making $50000 and taking standard deductions pays $10,000 in income tax, which is flat out wrong. He admitted that there was no way that they could definitively say that prices would go down just because business taxes were reduced, which he has claimed in the past and which he contradicted himself on less than a minute later. He said that business would be able to deduct purchases and capital investment - but only if they are made or invested with companies here in the U.S., which is something new right out of the blue. How can anyone accurately predict what the effects of his plan is on the average person if he's changing it every time you turn around?