C&R License allows you to have qualifying firearms sent directly to your house. You have your own FFL number, you just aren't a DEALER, you are a COLLECTOR.
Firearms must be 50 years old or otherwise satisfy the criteria of a curio or relic. One example is the CZ-82 pistol in 9x18mm Makarov. They are only 25 years old, but qualify because there is one in a museum at West Point and someone was able to convince someone in charge that all examples should qualify. At least that's the apocryphal version I heard anyway.
MidwayUSA, Brownells, and other suppliers will give you the same discount that they give to dealers and gunsmiths. This alone paid for my license long before I ever ordered any guns with it.