Will this really stand up in the courts though? Given enough loss in tax revenue, I'm sure the feds will argue usage == tax evasion.

"The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform throughout the United States;"

https://en.wikipedia.org/wiki/Taxing_and_Spending_Clause

Not agreeing with it. I just don't think it will stay white market in US