I read the book, got it yesterday, finished it this morning.
It does not answer the questions for me, it is a good beginning book for someone who has never heard of the plan though.
The big issue that the Fair Tax people need to prove to get this program to be embraced by almost everyone is to prove that the retail price paid for goods will not go up by more than say 5-10% when the tax is included. If they can get people to buy off on that claim, we have a winner.
I am skeptical but I am researching this topic as are many people. One problem is economic forecasting is very difficult.
I can understand you being concerned about the prices coming down. Even if you don't believe they will come down at all, remember this. When people don't have anything withheld from their check they will have the money to pay the tax. We're not saying nobody is going to be paying taxes. That would be stupid. Some people will pay more, some less. It all depends on how much you spend. I plan to pay less because I am going to save more. At least I have the opportunity to do that before taxes under the Fair Tax.