Actually, my point was that this "dodge" would be still-born due to the minimum auditing practice I would expect from any State FairTax enforcement agency. I do not think it would be a matter of waiting for a new dodge to pop up and new legislation to counter it.
The simpicity of the FairTax means a relatively short set of regs to make it tight. Compared to the 60,000 pages the income tax code relies on.
You are not reckoning with the ingenuity of people. People will find lots of interesting loopholes, all of which will be plugged by increasingly contorted legislation.
Also note that there are various exemptions spelled out in the legislation itself. Those exemptions will be tweaked continually, just like the tax incentives of the current plan.