Army Air Force Exchange Service
We don't pay any sales taxes through it. If that holds, you'll see an even bigger influx of people pushing to use them, since places like Walmart will now be more expensive.
In that case, the goods you purchase will be 21% cheaper than they are now.
Not at all. The PX/BX charges no sales tax because those are STATE taxes. A FEDERAL sales tax, tariff, excise tax, VAT, fair tax, or whatever else you want to call it would still have to be charged by AAFES.
It would probably have the effect of making the PX/BX slightly less competitive with Wally World, to the extent it would pull one way or the other at all.