
As can be seen, the ratio between Xbox 360 to PS3 consoles sold has been steadily declining since September - and, given that there were no prices drops or 'blockbuster' Xbox 360-exclusive releases since September (Halo 3), the trend going into January would have likely continued, irrespective of any hardware shortages.
Further backing that theory is The simExchange’s prediction market, which expects the PS3 to outsell the Xbox 360 in March - even though Microsoft has stated that they expect to meet March’s demand.
There are likely many catalysts playing a role in this trend, but one of the bigger ones could be that many legacy systems owners are finally making the leap into the next-generation.
Last year, PS2 Madden NFL 08 was the only legacy system SKU to break the top 10 in unit sales for 2007, indicating a large PlayStation 2 user base that has still not made the next-generation jump. Given that, it is likely that as each month passes by, an increasing amount of PS2 owners are staying loyal to the Sony brand.
[Jesse Divnich is the analyst for the simExchange, a prediction market that allows users to buy and sell fake video game stocks in attempts to predict Global Lifetime Sales (GLS), monthly sales based on NPD data(called “future”), and Metacritic scores. Watch for further data on January sales and February predictions throughout the week.]