Colorado "closed" the loophole. Before I could buy a gun from a private individual face to face. He didn't even have to have a table, could be one of the guys with a gun to trade or sell if he made a deal. Now, if I find something like a .22 smoothbore Winchester (did), I have to pay to have the background check done by a bank of dealers set up for that. We have ALWAYS, like before had to do the paperwork with a FFL dealer. I have not found anything much I wanted at the last shows, so seldom go now. I know where the component dealer has his inventory, so can go there during the week and get what I need without having to pay admission. Right now bachground checks are taking over a day, so this will cause problems if someone finds something he likes that is offered by a dealer from out of town. You CANNOT do parking lot transactions. The downside is that this adds $20 to the price of any privately held gun as these guys can't do the check.
I did have a fellow looker hint strongly that he was lonesome for his 1911 that was home in Alaska, and wished someone would do a straw purchase for him. My only mistake then was not going directly to the management.
AND FOR ANY LOOKERS: the last time I bought a gun at a dealer I filled out the paper work and waited for the OK. This same dealer is also the one that received an online purchase (according to law) and did the background check for a fee. I have also seen this shop turn away purchasers because they didn't like their nervous attitude.