I'm an FFL holder as I needed one to ship and receive for my re-finish biz.
I really did not care to have one as my little business is a side business for me. Something I started to help me make a buck during my retirement years.
But the Fed's say I need one to re-finish guns, and to ship and receive.
You'll not make any decent money trying to compete with all of the people now trying to sell retail on Gunbroker.com
Currently there are 350 Ruger LCP's for sale there. Most all are NEW.
I've seen, and see many sell for anywhere from $1.00 to $5.00 over cost. That is a negative considering your costs to maintain an FFL, the price to ave the piece shipped to you, and the price to run the auction.
There are many more examples of new firearms being sold at, or at near cost on the Internet.