Interesting NPD analysis

[Bodhesatva]

Here we go, I just did cross analysis.

PS2 owners are:

~2% less likely to buy a Wii than the average consumer
~3% less likely to buy a 360 than the average consumer
~16% more likely to buy a PS3 than the average consumer

So it seems likely that "brand loyalty" nets you about 15% better sales among your base of past-generation users.