In a column on IndustryGamers, EEDAR analyst Jesse Divnich lays down his case for premium downloadable content and its effect on the retail scene. According to Divnich, whenever a high profile game receives premium DLC, it can actually hurt the sales of lower profile games in the same genre.

He notes that a blockbuster game normally has a blackout period of a few weeks, meaning that when a new game comes out -- he uses Halo 4 as an example -- there's a period before and after its release when gamers are less likely to buy a similar game. Whenever that same game gets DLC, players are once again less liable to purchase a similar game for a certain period before and after the release of the DLC. After all, why would you pick up Call of Duty: The Next One, if you're still playing that fancy new Halo DLC?

The long and short of it, says Divnich, is that DLC has nothing but a negative impact on retail. It's actually a double impact, as DLC both prevents gamers from buying a new game and from selling their current games back to used game retailers like GameStop. According to Divnich, digital sales are going to seriously impact retail sooner than believed.

This article was originally published on Joystiq.