My local online "market place" is still, and always has been, higher priced than what the market actually is for private sales. I credit that to the persons who are trying to get those that will pay the extra money for something that should not be there in price. There are many on this online place that have their stuff marked up at prices that are at least, and usually a bit higher than, most of the used prices in local gunshops.
There are always some good priced pieces on there, and those don't usually last long. Occasionally, some even are purchased and resold for a markup on the same website.....now that is something that makes me
There were many cases of ammo and primers being sold this way, for a substantial markup in the past.....at least until they were trolled relentlessly by a few guys that I know for doing this.