I understand all the explanations and not arguing any of them but there seems to be a lot of gray area here.
No there isn't really.
It is pretty obvious who is in the business and who is not.
Your right. It's pretty obvious the guy renting a table at the gun show is more likely in business than one guy buying a gun to sell and make a $100 bucks.
Especially if the guy is at that table every show for the past 5 years, and his inventory keeps changing!
You should really Google "BATFE FAQ"
What am I missing here? Where is the part about INTENT TO RESELL? All I found was this.
No such thing exists.
As I already stated, it is about "engaged in the business".
a person who devotes time, attention, and labor to
dealing in firearms as a regular course of trade or business with
the principal objective of livelihood and profit through the
repetitive purchase and resale of firearms, but such term shall not
include a person who makes occasional sales, exchanges, or purchases
of firearms for the enhancement of a personal collection or for a
hobby, or who sells all or part of his personal collection of
firearms;