EEDAR's Jesse Divnich doesn't necessarily think so. He argues that "publishers who purposely diverted their AAA holiday titles into 2010 made the proper decision and will likely realize stronger sales with a post-holiday release than a holiday release." And the reasoning? The combination of Mario, Modern Warfare 2 and Assassin's Creed 2 predictably impacted the sales of all other games. "High quality games are selling less units in the 2009 holiday season compared to 2008," Divinich noted by analyzing the sales of games with Metacritic scores of 80 and above.
Still, we can't help but look at the first paragraph with awe. Can our wallets even survive an onslaught of that magnitude? We have an easy solution for publishers: there's an entire "summer" season to consider when releasing games.