Unless the answer is 5 or less, it likely won't affect me. I sold 5 or 6 this year which is probably the most I have ever sold in a year.
However, I was told by a dealer at a gun show that there are people who get tables at every local gun show and buy/sell guns who don't have an FFL. I could care less, but I imagine it would affect people like them more than us. My cousin used to go to all the shows selling gun safes. I know he would keep an eye out for deals on guns to clean up and resell. It might affect people like that also.