Gunbroker is the eBay of guns. You purchase the firearm from the seller through gunbroker. Slickguns lists the prices of a gun from all the dealers they care to find. This way you can see/compare prices on one site. You then go to the dealers sight and purchase directly from them. Also, there will be no private sellers on slickguns.
So you say Slickguns better site for new gun purchases?
Aren't the deals posted on slickguns posted by users as well as the companies themselves?