I haven't sold any guns in a very long time.
With that said, when anyone asks me if I have any guns to sell, I'm still inclined to feel them out as I don't want to pass up a good deal.
I ask them what they are looking for and they tell me. That is usually followed by the statement, "but I don't want to do any paperwork."
I come back with, "in that case the price goes up."
With a dog-watching-television look they ask me what the paper work has to do with it.
I tell them that since I did the paper work, that I took all the perceived risks and inconveniences that they are implying. Therefore, I should get paid over and above the market rates for what the gun is selling for.
That's why I haven't sold any guns in the past 20-25 years.
Let's look ahead if the NFA ever falls, at least for suppressors. I can see these same people stricken with paper-phobia asking about silencers to sell.
I can hear them now; "since I don't have to do any paperwork on silencers, do you have any that you would like to sell?"
My reply will be, "since you didn't bother to pay the $200, fill out the paperwork and wait a year, I'm going to have to charge you more."
Then watch them go try to buy a suppressor after they've flown of the store shelves and wait for the supply to catch up with demand.